Performance of the predictive criteria of the American Society for Gastrointestinal Endoscopy in the diagnosis of choledocholithiasis at a secondary care public hospital in the State of Nuevo León, Mexico C. Ovalle-Chao; D.A. Guajardo-Nieto; R.A. Elizondo-Pereo;

Differences in the presentation and treatment of primary liver tumors at a hepatology center and an oncology center K.P. Rojas-Pintor; M.A. Arizmendi-Villarreal; J.E. Aparicio-Salas; D.P. Moreno-Peña; D. Hernández-Barajas; P. Cordero-Pérez; L.E. Muñoz-Espinosa;

Serrated polyps of the colon and rectum: a concise review R. Monreal-Robles; J.O. Jáquez-Quintana; D.E. Benavides-Salgado; J.A. González-González;