The role of metabolic factors in the association between obesity and cholelithiasis: A two-step, two-sample multivariable mendelian randomization study Xiangrong Xu; Jiawei Gao; Jun Sun; Ruiwen Liu; Wei Chen;

Prognostic factors for local recurrence in patients with rectal cancer submitted to neoadjuvant chemoradiotherapy and total mesorectal excision Caio Sergio Rizkallah Nahas; Sergio Carlos Nahas; Carlos Frederico Sparapan Marques; Ulysses Ribeiro Junior; Leonardo Bustamante-Lopez; Guilherme Cutait Cotti; Antonio Rocco Imperiale; Rodrigo Ambar Pinto; Ivan Cecconello;

Perianal fistulizing Crohn's disease is associated with a higher prevalence of HPV in the anorectal fistula tract. A comparative study Lucas Rodrigues Boarini; Carlos Walter Sobrado; Giana Rabello Mota; Luisa Lina Villa; Idblan Carvalho de Albuquerque; Natalia Sousa Freitas Queiroz; Carolina Bortolozzo Graciolli Facanali; Sidney Roberto Nadal; Ivan Cecconello;