Should Dientamoeba fragillis be looked for in pediatric digestive pathology of an unknown cause? A proposed pilot case¿control study Montse Montraveta-Querol; Maria Victoria Bovo; Neus Roig-Abraham; Nona Romaní; Alba Alcaraz; Gema Fernández-Rivas;

Clinical characteristics of patients with Mycoplasma pneumoniae infection Ana Isabel Álvaro Varela; Aitziber Aguinaga Pérez; Ana Navascués Ortega; Jesús Castilla; Carmen Ezpeleta Baquedano;

Epidemiological characteristic and prognosis changes in chronic hepatitis B in people living with HIV Julia Vásquez Manau; Cristina Marcelo Calvo; Alejandro De Gea Grela; Luis Ramos Ruperto; Lucía Serrano; Carmen Busca Arenzana; Rafael Micán; Rosa de Miguel Buckley; Rocío Montejano Sanchez; Ignacio Bernardino; María Eulalia Valencia; Victoria Moreno; María Luisa Montes; Jose Ramón Arribas; Juan González; Luz Martín-Carbonero;