Impact of time to esophagogastroduodenoscopy in patients with nonvariceal upper gastrointestinal bleeding: A systematic review and meta-analysis H.G. Bilder; C. Soccini; J.S. Lasa; I. Zubiaurre;

Risk factors associated with postoperative morbidity and mortality in D2 radical gastrectomy for gastric cancer O.R. Paredes-Torres; L. García-Ruiz; J. Luna-Abanto; K. Meza-García; I. Chávez- Passiuri; F. Berrospi-Espinoza; C. Luque-Vásquez Vásquez; E. Ruiz-Figueroa; E. Payet-Meza;

Pancreatic ductal adenocarcinoma: Eleven years of experience at a tertiary care hospital center G.E. Sánchez Morales; R.A. Moguel Valladares; J. Flores Maza; U. Clemente Gutiérrez; E. Sánchez-García Ramos; I. Domínguez Rosado; L.C. Chan Núñez;