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Original article
Heterozygous mutations of ATP8B1, ABCB11 and ABCB4 cause mild forms of Progressive Familial Intrahepatic Cholestasis in a pediatric cohort
Mutaciones en heterocigosis en ATP8B1, ACB11 y ABCB4 como causa de formas leves de Colestasis Intrahepática Progresiva Familiar en una cohorte pediátrica
Beatriz Mínguez Rodrígueza,
Corresponding author
, Cristina Molera Busomsa, Loreto Martorell Sampolb, Ruth García Romeroc, Gemma Colomé Riverod, Javier Martín de Carpia
a Department of Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital, Barcelona, Spain
b Department of Genetics, Sant Joan de Déu Hospitat, Barcelona, Spain
c Unit of Paediatric Gastroenterology, Hepatology and Nutrition, Miguel Servet Hospital, Zaragoza, Spain
d Department of Paediatric Gastroenterology, Nens Hospital of Barcelona, Barcelona, Spain
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Progressive Familial Intrahepatic Cholestasis &#40;PFIC&#41; is a heterogeneous group of recessive autosomal inherited liver disorders that affects genes encoding hepatocellular transport system proteins&#46;<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">1</span></a> This defect results in the inability to suitable form and excrete bile from hepatocytes leading to intrahepatic cholestasis&#44; pruritus&#44; and jaundice evolving to cirrhosis and end stage liver disease&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#8211;3</span></a> Three genes have been classically associated with these diseases &#40;ATPB8B1&#44; ABCB11 and ABCB4&#41; although in recent years other involved genes have been described&#46; Gene ATPB8B1 &#40;18q21-22&#41; encodes the protein FIC1&#44; an aminophospholipid translocase located in the canalicular membrane of hepatocytes and responsible for transporting phospholipids &#40;phosphatidylserinne and phosphaticylethanolamine&#41; inside the canalicular membrane&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;3</span></a> ABCB11 &#40;2q24&#41; codifies Bile Salt Export Pump &#40;BSEP&#41;&#44; an ATP-dependent transporter only expressed in the liver&#44; that exports bile acids from inside the hepatocyte to the canaliculi against gradient&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;2</span></a> Multi-Drug Resistance 3 glycoprotein &#40;MDR3&#41;&#44; encoded by the gene ABCB4 &#40;7q21&#41;&#44; is a floppase that excretes phospholipids &#40;phosphatidylcholina&#41; that neutralizes the detergent effect of hydrophobic bile salts&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">Partial defects with heterozygous mutations of these genes have been described in milder forms of cholestatic liver diseases<a class="elsevierStyleCrossRefs" href="#bib0165"><span class="elsevierStyleSup">3&#44;4</span></a>&#58; Benign Recurrent Intrahepatic Cholestasis &#40;BRIC&#41;&#44; Intrahepatic Cholestasis of Pregnancy &#40;ICP&#41;&#44; Low Phospholipid-Associated Cholelithiasis Syndrome &#40;LPAC&#41;&#44; Drug Induced Cholestasis &#40;DIC&#41;&#44; Drug Induced Liver Injury &#40;DILI&#41;&#44; transient neonatal cholestasis or adult biliary fibrosis or cirrhosis<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">2&#44;5&#44;6</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46; Historically&#44; these have been considered to be milder and benign recessive autosomal hereditary forms&#44; usually not progressive&#44; presenting with limited episodes of cholestasis&#44; pruritus and jaundice&#44; and triggered by a known insult in most of the cases&#46; However&#44; some case reports show evolution to cirrhosis and end- stage liver disease&#44; hence they might be taken as a clinical continuum&#46;<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">7&#44;8</span></a> Little is known about these entities in which the genetic defect affects only partially the protein function&#44; since in the literature there are only clinical cases or short series with a wide spectrum of morbidity&#46; We present a series of 7 pediatric patients diagnosed with mild atypical forms of PFIC in order to expand the knowledge&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Patients and methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Patients</span><p id="par0015" class="elsevierStylePara elsevierViewall">This is a retrospective descriptive study &#40;September 2017 to December 2018&#41;&#44; including 7 children with heterozygous gene defects encoding proteins of the hepatocellular transport system&#44; diagnosed after a cholestatic episode defined as high conjugated bilirubin<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>1<span class="elsevierStyleHsp" style=""></span>mg&#47;dl or GGT above normal levels for age&#46; In all of them&#44; other etiologies &#40;infections&#44; autoimmune&#44; alpha-1-antitrypsin deficiency&#44; toxics and Wilson&#39;s disease&#41; were excluded&#46; Data referring to familial history&#44; onset symptomatology&#44; laboratory and imaging findings &#40;ultrasound&#44; magnetic resonance cholangiopancreatography&#41;&#44; histology&#44; immunohistochemistry&#44; gene analysis&#44; treatment and relapses were collected&#46; Parental informed consent was obtained in all the patients&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Mutation analysis</span><p id="par0020" class="elsevierStylePara elsevierViewall">Genomic DNA was obtained and amplification by polymerase chain reaction &#40;PCR&#41; of exons and flanking intron sequences of the panel of PFIC &#40;NextGeneDx&#174;&#41; were done &#40;Instituto de Medicina Gen&#243;mica S&#46;L&#46;&#44; Valencia&#44; Spain&#41;&#46; PCR products were prepared with the kit Nextera XT &#40;Illumina&#41; and submitted to the DNA sequence with the MiSeq sequencer &#40;Illumina&#41;&#46; The resulting data were analyzed bioinformatically and checked by Sanger sequentiation&#46;</p></span></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Results</span><p id="par0025" class="elsevierStylePara elsevierViewall">A total of 7 patients &#40;5 males&#41; had a heterozygous mutation of ATP8B1&#44; ABCB4 or ABCB11 &#40;<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#41;<span class="elsevierStyleItalic">&#46;</span> The sequence analysis revealed two missense mutations in heterozygosis in ATP8B1 &#40;FIC1&#41; in patient 1&#58; c&#46;1367C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T &#40;p&#46;Thr456Met&#41; previously described in relation with PFIC1 in homozygosis&#44; and c&#46;3087C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>A &#40;p&#46;Asn1029Lys&#41; which affects a very conserved locus and probably implies a pathogenic significance&#46; In two patients &#40;patient 2 and 3&#41;&#44; defects in ABCB11 &#40;BSEP&#41; were found&#58; both had the defect c&#46;1907A<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T &#40;p&#46;Glu636Val&#41;&#59; although the same mutation in homozygosis with another amino acid had been described to cause PFIC2&#44; no reports in the literature of this defect exists&#46; Patient 2 showed another pathogenic mutation c&#46;1308<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>1G<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T in ABCB11 and patient 3 showed a mutation in ABCB4&#44; c&#46;3715C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T &#40;p&#46;Arg1239Cys&#41;&#44; described with a very low frequency so of uncertain significance&#46; Five patients &#40;patients 3-7&#44; patient 3 already referred&#41; had mutations in ABCB4 &#40;MDR3&#41;&#58; patient 4 showed 2 missense mutations not previously described c&#46;1A<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T &#40;p&#46;Met1Ile&#41; affecting an initial reading codon and c&#46;784dupG &#40;p&#46;Ala262Glyfs&#42;31&#41; involving an early stop codon&#46; This patient also had an uncertain missense mutation in ABCB11 c&#46;1331T<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>C &#40;p&#46;Val444AIa&#41;&#44; but he behaved as an MDR3 defect&#44; presenting with gallstones previous to diagnosis&#46; The other three patients showed one ABCB4 mutation in heterozygosis&#44; with no other mutations found&#58; patient 5 showed an unknown missense mutation c&#46;3508-3C<span class="elsevierStyleHsp" style=""></span>&#62;G that affects the mRNA correct processing&#59; patient 6 had a c&#46;1769G<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>A &#40;p&#46;aRG590Gin&#41; mutation&#44; of uncertain meaning but probably related to LPAC syndrome&#59; patient 7 showed a mutation c&#46;3371&#95;3372insT in heterozygosis described in homozygosis in PFIC3&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><p id="par0030" class="elsevierStylePara elsevierViewall">Referring to family history&#44; two patients &#40;3 and 4&#41; had a background of gallbladder stones&#44; both showing one mutation in gene ABCB4&#46; The mother of patient 3 had suffered intrahepatic cholestasis of pregnancy &#40;ICP&#41; with gestational cholestasis and mild hepatitis&#44; also described in ABCB4 defects&#46; Two patients &#40;2 and 3&#44; cousins&#41; shared the mutation that affects BSEP&#44; so this may be the cause that one of them does not share the family history of gallbladder stones&#46; Moreover&#44; these two related patients were both diagnosed with Celiac Disease&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The median age of onset was 5&#46;5 years &#40;1 month&#8211;15 years&#41; with a median time of follow-up of 6 years &#40;1 year&#8211;11 years&#41;&#46; Patients with disease-causing variants in ABCB11 had shown an earlier onset &#40;1 and 4 months old&#41;&#46; The initial presentation was pruritus and&#47;or irritability in four patients&#59; one of them associated with hipocolia and coluria&#46; Two patients presented with laboratory alterations&#58; hypertransaminemia after a cholecystectomy secondary to gallstones and persistent cholestasis after a chickenpox infection&#46; In our series&#44; the symptomatology of the patients with a BSEP defect started earlier &#40;1 and 4 months&#41;&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Median levels of total bilirubin at the initial study were 2&#46;72<span class="elsevierStyleHsp" style=""></span>mg&#47;dl &#40;0&#46;7&#8211;11&#46;6&#41; with conjugated bilirubin of 1&#46;5<span class="elsevierStyleHsp" style=""></span>mg&#47;dl &#40;0&#46;2&#8211;6&#46;5&#41;&#46; Median levels of gamma-glutamyl transpeptidase &#40;GGT&#41; were 280<span class="elsevierStyleHsp" style=""></span>UI&#47;L &#40;11&#8211;1256&#41;&#44; being abnormal only in 3 patients with an MDR3 defect&#46; All cases showed increased serum aspartate aminotransaminase &#40;AST&#41; 156<span class="elsevierStyleHsp" style=""></span>UI&#47;L &#40;48&#8211;469&#41; and alanine aminotransaminase &#40;ALT&#41; 272<span class="elsevierStyleHsp" style=""></span>UI&#47;L &#40;49&#8211;923&#41;&#46; Bile acid serum concentration was determined in 6 patients&#44; being high with a median of 91<span class="elsevierStyleHsp" style=""></span>&#956;mol&#47;L &#40;24&#8211;306&#41;&#46; None of the patients associated liver synthesis dysfunction&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Abdominal ultrasound was performed in all cases&#44; evidencing asymptomatic biliary lithiasis in one &#40;ABCB11 mutation&#41; and mild hepatomegaly in the patient that debuted after chickenpox &#40;ATP8B1 defect&#41;&#44; being both resolved in a later ultrasound&#46; In 3 patients magnetic resonance cholangiopancreatography was done&#44; showing distended gallbladder in 2 of them &#40;ABCB4 defect in both&#41; without any disturbance in the biliary tree&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">Histology revealed mild interface hepatitis and portal inflammation in the 6 patients that had the biopsy done&#58; 4 of them also showed mild fibrosis with portal expansion&#46; One of them had shown moderate fibrosis in a previous biopsy performed six years before in the diagnosis approach during the first cholestatic episode&#44; showing histological improvement in the follow-up&#46; None showed alterations in the biliary ducts or hepatocellular cholestasis&#46; All the biopsies samples had normal immunohistochemistry for BSEP and MDR3 activity&#46;</p><p id="par0055" class="elsevierStylePara elsevierViewall">In terms of treatment&#44; ursodeoxycholic acid &#40;UDCA&#41; was initiated in all with good response&#46; In 2 children&#44; cholestyramine was added to control pruritus&#44; improving laboratory parameters and resolving the pruritus&#46; In the evolution of the disease&#44; 2 patients needed supplements with fat-soluble vitamins because of vitamin E deficiency&#46; Three cases cursed with limited relapses in the context of viral infections&#44; anesthesia or vaccines&#44; showing irritability&#44; pruritus or jaundice as well as elevated bilirubin and transaminases in the laboratory tests&#46; Relapses were treated with the addition of cholestyramine and hydroxyzine for the pruritus showing a complete clinical and biochemical normalization after the episode&#46; None of them developed growth delay&#44; persistent pruritus or hepatic damage progression during the follow-up &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;<span class="elsevierStyleItalic">&#46;</span></p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Discussion</span><p id="par0060" class="elsevierStylePara elsevierViewall">Genetic variants in the hepatobiliary transport proteins &#40;FIC1&#44; BSEP and MDR3&#41; comprise a broad spectrum of cholestatic liver diseases from PFIC to milder forms with limited episodes of cholestasis&#46; While mutations that cause PFIC are often placed in conserved regions of the genes that encode conserved functional domains of the corresponding transport proteins&#44; mutations in milder forms only partially impact on the protein expression and function&#46;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">2&#44;6</span></a> Moreover&#44; PFIC are recessive diseases and must be inherited in homozygosis&#44; however&#44; heterozygous mutations in genes encoding transport proteins are known to cause these milder forms&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">6</span></a> In our series&#44; 7 patients with an unknown origin of cholestasis showed at least one potential pathogenic variant in ATP8B1&#44; ABCB11 and ABCB4 that may cause a partial impaired function of the transport protein&#46; Most of the defects found were missenses&#44; which have been associated more frequently with BRIC and milder forms&#44; while nonsense or large deletions cause a higher failure of protein production or function with severe PFIC cases&#46;<a class="elsevierStyleCrossRefs" href="#bib0165"><span class="elsevierStyleSup">3&#44;9</span></a> Apart from that&#44; the genotypic-phenotypic correlations are still unknown with high variability in the presentation&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">4&#44;10</span></a> The same mutation in homozygous can have an incomplete penetrance while in compound heterozygous could cause PFIC&#46;<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">9</span></a> Dr&#246;ge et al&#46; performed DNA sequencing in 427 patients with cholestasis phenotype identifying 25 cases with just one heterozygous disease-causing variant postulating the contribution of other mutations or epigenetic factors&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">6</span></a> In our series&#44; 3 symptomatic patients showed a unique mutation in ABCB4&#44; this might be due to other mutations outside the sequenced areas &#40;regulatory sequences&#44; genes involved in transcription or control of protein trafficking&#41;&#44; mutations in other genes or epigenetic factors that may contribute to the development and severity of the disease&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;6&#44;11</span></a> One of our patients showed the mutation p&#46;Val444Ala &#40;ABCB11&#41; which has been described in DIC and more severe ICP<a class="elsevierStyleCrossRefs" href="#bib0165"><span class="elsevierStyleSup">3&#44;6</span></a>&#59; this patient also has a compound mutation in heterozygosis in ABCB4 and behaves as an impairment of MDR3 function and fulfills the L-PAC criteria &#40;younger than 40 years old with gallbladder stones that recurrence after the cholecystectomy surgery&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">12</span></a></p><p id="par0065" class="elsevierStylePara elsevierViewall">In pediatric patients&#44; the onset of milder forms&#44; although very variable&#44; usually occurs later than in PFIC&#44; presenting some of them in adulthood&#44; probably related to the less severe evolution of the disease&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">13</span></a> Nevertheless&#44; presentation is generally earlier in FIC1 and BSEP defects compared to MDR3 mutations&#44;<a class="elsevierStyleCrossRefs" href="#bib0180"><span class="elsevierStyleSup">6&#44;14</span></a> with cases starting in the neonatal period with prolonged jaundice and cholestasis&#46;<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">15</span></a> Patients with BRIC2 &#40;defect in ABCB11&#41; have been reported to have their first episode before 6 months of life&#46;<a class="elsevierStyleCrossRefs" href="#bib0230"><span class="elsevierStyleSup">16&#44;17</span></a> Patients with ABCB4 &#40;MDR3&#41; defects are often diagnosed in adolescence or early adulthood&#44; with cholesterol gallbladder gallstones or secondary to the increase of female sex hormones due to pregnancy or contraceptive drugs in women &#40;ICP&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0190"><span class="elsevierStyleSup">8&#44;18</span></a> However&#44; in our series&#44; the onset in the MDR3 defects was very variable&#44; including a wide range of ages&#44; probably determined by the mutation location and its protein expression&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">As in PFIC&#44; milder forms are hereditary and recessive but we found only two patients with family history&#44; all related to ABCB4 defects as gallbladder stones&#44; already described in the literature&#44;<a class="elsevierStyleCrossRefs" href="#bib0240"><span class="elsevierStyleSup">18&#44;24</span></a> and ICP&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;5</span></a> This finding supports the theory of the great phenotypic variability and the poor genotype correlation of this entity&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">Clinical presentation is also very variable&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">19</span></a> As we report&#44; the disease usually presents as intermittent episodes of pruritus and jaundice that can associate hepatomegaly and resolve spontaneously&#46;<a class="elsevierStyleCrossRefs" href="#bib0250"><span class="elsevierStyleSup">20&#8211;23</span></a> Only one patient&#44; a 15-year-old boy with a defect in MDR3&#44; associated a major complication&#58; gallbladder stones&#46; A possible explanation of this difference may be the age&#44; which was much lower in the rest while gallbladder cholesterol stones in LPAC syndrome are reported in mild-age&#46;<a class="elsevierStyleCrossRefs" href="#bib0190"><span class="elsevierStyleSup">8&#44;18</span></a></p><p id="par0080" class="elsevierStylePara elsevierViewall">In terms of diagnosis&#44; a high index of suspicion is needed&#58; a story of repeated episodes of pruritus with high transaminases that normalize after trigger cessation in absence of other possible explanations&#44; may increase the suspicion of this entity&#46; In our experience&#44; complementary studies were performed because of irritability or pruritus with abnormal liver parameters or after the accidental finding of hypertransaminemia&#44; but the high suspicion after ruling out other causes led us to ask for a genetic test&#46;</p><p id="par0085" class="elsevierStylePara elsevierViewall">As is well known&#44; and it is presented in our patients&#44; in the PFIC3&#44; MDR3 is a phospholipid translocator responsible for the secretion of phospholipids and neutralization of the detergent effect of the hydrophobic bile salts&#46; MDR3 dysfunction results in toxicity on bile ducts that leads to cholestasis with high serum levels of GGT&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;6</span></a> This increase in the GGT was also seen during the episodes of cholestasis in our patients with heterozygous mutations in ABCB4&#44; but it normalizes between relapses&#46; Conversely&#44; in PFIC1 and 2&#44; the FIC1 and BSEP defects lead to reduce bile salt levels without toxicity on the biliary epithelium&#44; thus these patients show normal GGT levels&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;6</span></a> One of our patients &#40;number 3&#41; had a mutation in both ABCB11 and ABCB4 genes&#44; behaving as a defect in BSEP with normal GGT&#46; Other alterations that are found during flares are high transaminases&#44; bilirubin and bile acids in serum&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">Liver biopsies performed during flares have shown hepatocanalicular cholestasis without fibrosis&#44; while histology in asymptomatic periods is usually normal&#46;<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">2</span></a> The immunochemistry shows normal expression for BSEP and MDR3&#44; which supports the theory of a functional protein defect&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">1&#44;24</span></a> A therapeutic approach should be established based on the severity and residual activity of the transporter&#46; Although UDCA has shown to be more effective in ABCB4 deficiency&#44; even resolving advanced fibrosis&#44;<a class="elsevierStyleCrossRefs" href="#bib0275"><span class="elsevierStyleSup">25&#8211;27</span></a> in the low GGT defects&#44; can also improve pruritus and liver enzymes&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">26</span></a> Our patients were treated with UDCA obtaining good results&#46; Rifampicin acts as an enzyme inducer&#44; reducing itching with greater efficacy than UDCA&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">26</span></a> Recently&#44; the histone deacetylase inhibitor 4-phenyl butyric acid &#40;4-PBA&#41; has shown its efficacy as a PFIC treatment&#46;<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">15&#44;21</span></a> Cholestyramine is the first approach for alleviating cholestatic pruritus&#44; but has no direct effect on cholestasis&#46;<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">10</span></a> In severe progressive cases or patients with frequent or debilitating flares&#44; partial biliary diversion with interruption of bile salts enterohepatic circulation can be considered&#46;<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">10&#44;28&#44;29</span></a> In progressive severe cases&#44; a liver transplant may be the final treatment&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">26</span></a></p><p id="par0095" class="elsevierStylePara elsevierViewall">Our patients showed limited new episodes without liver disease progression&#44; despite the diagnosis age&#46; Nevertheless&#44; there are cases reports published with evolution to PFIC by the time despite an initial history of auto limited episodes of cholestasis&#44; which supports the understanding of this pathology as a continuum spectrum from milder forms to permanent cholestatic and severe diseases as PFIC&#46;<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">7&#44;8&#44;14&#44;16&#44;17&#44;22&#44;30</span></a></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Conclusions</span><p id="par0100" class="elsevierStylePara elsevierViewall">Heterozygous mutations in genes involved in hepatocellular transport may lead to milder forms of intrahepatic cholestasis with great phenotypic variability and poor genotypic correlation&#46; It is an infrequent entity&#44; probably secondary to its poor knowledge and low index of suspicion leading to a delay in the diagnosis in adult age&#46; Patients with repeated episodes of high transaminases or pruritus after a trigger may lead us to suspect the diagnosis&#44; confirmed by the genetic test&#46; In our series&#44; choleretic drugs as UDCA have shown to be effective&#46; We should be aware of the risk of progression of the disease even if the mutation and the phenotype correspond to a milder form&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Ethics approval</span><p id="par0105" class="elsevierStylePara elsevierViewall">Until September 2020 in our Hospital the institution ethics approval was not obligatory for observational retrospective studies as long as informed consent was obtained from the guardians&#46; This original work was done before this statement was approved&#46;</p></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Funding</span><p id="par0110" class="elsevierStylePara elsevierViewall">No funding was received to assist with the preparation of this manuscript&#46;</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Authos&#8217; contribution</span><p id="par0115" class="elsevierStylePara elsevierViewall">Beatriz M&#237;nguez and Cristina Molera have participated in the conception&#44; design of the work and literature research&#46; Beatriz M&#237;nguez&#44; Cristina Molera&#44; Ruth Garc&#237;a Romero&#44; Gemma Colom&#233; and Loreto Martorell have collected data and analyzed it&#46; All the authors mentioned and Javier Mart&#237;n de Carpi has participated in the interpretation of the results&#44; writing the draft of the manuscript and its corrections&#46; All the authors agreed with the content and gave consent to publish the work&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Consent to participate</span><p id="par0120" class="elsevierStylePara elsevierViewall">Informed consent was obtained from legal guardians&#46;</p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Availability of data and material</span><p id="par0125" class="elsevierStylePara elsevierViewall">The data and material have been retrospective obtained from the clinical records after the patients diagnose and informed consent&#46; This study was presented as an oral communication in the XXVI National Congress of the Spanish Society of Pediatric Gastroenterology&#44; Hepatology and Nutrition &#40;SEGHNP&#41; in Santander&#44; Spain and it was accepted as a poster in the 6th World Congress of ESPGHAN 2020 in Copenhagen&#44; Denmark&#46;</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Code availability</span><p id="par0130" class="elsevierStylePara elsevierViewall">We did not use any software&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conflict of interest</span><p id="par0135" class="elsevierStylePara elsevierViewall">The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper&#46;</p></span></span>"
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        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec1565554"
          "palabras" => array:7 [
            0 => "ATP8B1"
            1 => "ABCB11"
            2 => "ABCB4"
            3 => "BSEP"
            4 => "MDR3"
            5 => "FIC1"
            6 => "Colestasis intrahep&#225;tica progresiva familiar"
          ]
        ]
      ]
    ]
    "tieneResumen" => true
    "resumen" => array:2 [
      "en" => array:3 [
        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Introduction</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Heterozygous defects in genes implicated in Progressive Familial Intrahepatic Cholestasis have been described in milder forms of cholestatic diseases&#46; Our aim is to describe clinical&#44; laboratory and imaging characteristics as well as treatment and outcome of a cohort of pediatric patients with heterozygous mutations in ATP8B1&#44; ABCB11 or ABCB4&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Patients and methods</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">We present a retrospective descriptive study including pediatric patients with at least one heterozygosis defect in ATP8B1&#44; ABCB11 or ABCB4 diagnosed after a cholestatic episode&#46; Clinical&#44; diagnostic and outcome data were collected including gene analysis &#40;panel of PFIC NextGeneDx&#174;&#41;&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">7 patients showed a heterozygous mutation&#58; 3 patients in ABCB4&#44; 1 in ABCB11&#44; 2 in ABCB4 and ABCB11 and 1 in ATP8B1&#46; The median onset age was 5&#46;5 years with a median time of follow-up of 6 years&#46; The initial presentation was pruritus followed by asymptomatic hypertransaminasemia and persistent cholestasis&#46; Two patients had family history of gallbladder stones and mild hepatitis&#46; All showed elevated transaminases and bile acids&#44; high gamma glutamyl-transferase &#40;GGT&#41; in 3 and conjugated bilirubin in 2 patients&#46; Liver biopsy showed inflammatory infiltrate or mild fibrosis with normal immunohistochemistry&#46; All patients were treated with ursodeoxycholic acid&#44; two patients requiring the addition of resincholestyramine&#46; During follow-up&#44; 3 patients suffered limited relapses of pruritus&#46; No disease progression was observed&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusion</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Heterozygous mutations in genes coding proteins of the hepatocellular transport system can cause cholestatic diseases with great phenotypic variability&#46; The presence of repeated episodes of hypertransaminasemia or cholestasis after a trigger should force us to rule out the presence of these heterozygous mutations in genes involved in CIFP&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0005"
            "titulo" => "Introduction"
          ]
          1 => array:2 [
            "identificador" => "abst0010"
            "titulo" => "Patients and methods"
          ]
          2 => array:2 [
            "identificador" => "abst0015"
            "titulo" => "Results"
          ]
          3 => array:2 [
            "identificador" => "abst0020"
            "titulo" => "Conclusion"
          ]
        ]
      ]
      "es" => array:3 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Introducci&#243;n</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Se han descrito defectos en los genes implicados en las colestasis intrahep&#225;ticas familiares progresivas &#40;CIFP&#41; causantes de colestasis m&#225;s leves&#46; El objetivo es estudiar las manifestaciones cl&#237;nicas&#44; anal&#237;ticas y de imagen as&#237; como la evoluci&#243;n y respuesta al tratamiento de los portadores en heterocigosis de mutaciones en ATP8B1&#44; ABCB11 y ABCB4&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Pacientes y m&#233;todos</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Estudio descriptivo retrospectivo de pacientes con al menos una mutaci&#243;n en heterocigosis en los genes ATP8B1&#44; ABCB11 o ABCB4 diagnosticados tras un episodio de colestasis&#46; Se recogieron variables demogr&#225;ficas y datos cl&#237;nicos&#44; diagn&#243;sticos&#44; incluyendo estudio gen&#233;tico &#40;panel de CIFP <span class="elsevierStyleItalic">NextGeneDx&#174;</span>&#41;&#44; tratamiento y evoluci&#243;n&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">7 pacientes presentaron al menos una mutaci&#243;n en heterocigosis&#58; 3 en ABCB4&#44; 1 en ABCB11&#44; 2 en ABCB4 y ABCB11 y 1 en ATP8B1&#46; La edad media de inicio fue de 5&#46;5 a&#241;os con un tiempo medio de evoluci&#243;n de 6 a&#241;os&#46; La cl&#237;nica inicial fue prurito seguida de hipertransaminasemia asintom&#225;tica y colestasis persistente&#46; Dos pacientes ten&#237;an antecedentes familiares de litiasis biliar y hepatitis leve&#46; Todos mostraron transaminasas y &#225;cidos biliares elevados&#44; 3 gamma-glutamiltransferasa &#40;GGT&#41; y 2 bilirrubina directa&#46; La biopsia hep&#225;tica mostr&#243; infiltrado inflamatorio o fibrosis leve&#44; inmunohistoqu&#237;mica normal&#46; Fueron tratados con &#225;cido ursodeoxic&#243;lico a&#241;adi&#233;ndose colestiramina en 2&#46; Durante el seguimiento 3 presentaron episodios autolimitados de prurito&#46; No se observ&#243; progresi&#243;n de la enfermedad&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Mutaciones en heterocigosis en los genes implicados en el sistema de transporte hepatocelular pueden ocasionar cuadros de colestasis con gran variabilidad fenot&#237;pica&#46; Episodios repetidos de hipertransaminasemia o colestasis tras un desencadenante deben hacernos sospechar mutaciones en los genes implicados en las CIFP&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0025"
            "titulo" => "Introducci&#243;n"
          ]
          1 => array:2 [
            "identificador" => "abst0030"
            "titulo" => "Pacientes y m&#233;todos"
          ]
          2 => array:2 [
            "identificador" => "abst0035"
            "titulo" => "Resultados"
          ]
          3 => array:2 [
            "identificador" => "abst0040"
            "titulo" => "Conclusiones"
          ]
        ]
      ]
    ]
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      0 => array:8 [
        "identificador" => "tbl0005"
        "etiqueta" => "Table 1"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at1"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:2 [
          "leyenda" => "<p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Refs&#46; <a class="elsevierStyleCrossRefs" href="#bib0200">10&#44; 13&#44; 25</a>&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ATP8B1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8226;<span class="elsevierStyleHsp" style=""></span>Progressive familial intrahepatic cholestasis &#40;PFIC&#41;&#8226;<span class="elsevierStyleHsp" style=""></span>Benign recurrent intrahepatic cholestasis &#40;BRIC&#41;&#8226;<span class="elsevierStyleHsp" style=""></span>Intrahepatic cholestasis of pregnancy &#40;ICP&#41; &#40;low frequency&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8226;<span class="elsevierStyleHsp" style=""></span>PFIC 2&#8226;<span class="elsevierStyleHsp" style=""></span>BRIC 2&#8226;<span class="elsevierStyleHsp" style=""></span>ICP 2 &#40;low frequency&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8226;<span class="elsevierStyleHsp" style=""></span>PFIC 3&#8226;<span class="elsevierStyleHsp" style=""></span>BRIC 3<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">1</span></a>&#8226;<span class="elsevierStyleHsp" style=""></span>Adult biliary cirrhosis&#8226;<span class="elsevierStyleHsp" style=""></span>Cholesterol gallstone disease<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleHsp" style=""></span>-<span class="elsevierStyleHsp" style=""></span>Low phospholipid associated cholelitiasis &#40;L-PAC&#41;&#8226;<span class="elsevierStyleHsp" style=""></span>Transient neonatal cholestasis&#8226;<span class="elsevierStyleHsp" style=""></span>Drug induced cholestasis&#8226;<span class="elsevierStyleHsp" style=""></span>ICP 3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Pathologies associated to deffects in ATP8B1&#44; ABCB11 and ABCB4&#46;</p>"
        ]
      ]
      1 => array:8 [
        "identificador" => "tbl0010"
        "etiqueta" => "Table 2"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at2"
            "detalle" => "Table "
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        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Gen&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Mutations&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Protein&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Signification&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ATP8B1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1367C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Thr456Met&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;3087C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>A&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Asn1029Lys&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Probably pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1308<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>1G<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;-&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1907 A<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Glu636Val&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Probably pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1907 A<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Glu636Val&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Probably pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;3715C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Arg1239Cys&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Uncertain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1331T<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>C&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Val444Ala&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Uncertain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1 A<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>T&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Met1Ile&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Probably pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;784dupG&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Ala262Glyfs&#42;31&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Probably pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;3508-3C<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>G&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;-&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Uncertain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;1769G<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>A&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;Arg590Gln&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Uncertain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">c&#46;3371&#95;3372insT&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">p&#46;-&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pathogenic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Patient&#39;s genetic results&#46;</p>"
        ]
      ]
      2 => array:8 [
        "identificador" => "tbl0015"
        "etiqueta" => "Table 3"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at3"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:1 [
          "tablatextoimagen" => array:2 [
            0 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Gen&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Family history&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Age of onset&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Clinic presentation&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Biliary lithiasis&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Histology&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Treatment&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Follow up &#40;years&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Relapses&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="10" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Patient&#39;s characteristics</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ATP8B1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5 years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Cholestasis after chickenpox&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 months&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">PruritusIrritability&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Yes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">InflammationFibrosis &#40;F1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCACholesty ramine&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">GallstonesICP&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 month&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">PruritusIrritability&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">InflammationFibrosis &#40;F1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCACholestyramineFat soluble vitamins&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Anesthesia&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Gallstones&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15 years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">High transaminases&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Yes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inflammation Fibrosis &#40;F1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8 years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">High transaminases&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inflammation&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 months&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pruritus&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inflammation&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">VaccinesViral infection&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6 months&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pruritus&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inflammation Fibrosis &#40;F1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UDCAFat soluble vitamins&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="char" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Viral infection&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
            1 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Patient&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Gen&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Bilirrubin &#40;mg&#47;dl&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Conjugated bilirubin &#40;mg&#47;dl&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">ALT &#40;UI&#47;L&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">AST &#40;UI&#47;L&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">GGT &#40;UI&#47;L&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Bile salts &#40;mg&#47;L&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="8" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Laboratory results in the onset of the disease</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ATP8B1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">101&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">71&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;57&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;41&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">49&#44;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">48&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">13&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">200&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ABCB11&#47;ABCB4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;83&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">56&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">85&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">306&nbsp;\t\t\t\t\t\t\n
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ISSN: 24443824
Original language: English
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