First day postoperative values of the neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and C-reactive protein as complication predictors following gastric oncologic surgery D. Ortiz-López; M.A. Acosta-Mérida; J.A. Casimiro-Pérez; J. Silvestre-Rodríguez; J. Marchena-Gómez;

A complication of endoscopic closure of a duodenal perforation with the OVESCO system A.C. Rahy-Martín; L. Jiménez-Díaz; R.M. Rodríguez-Pérez; M.A. Acosta-Mérida; J. Marchena-Gómez;

Experience in the management of neoplastic gastric outlet obstruction in patients at the Hospital Universitario San Ignacio in Bogotá, Colombia A.F. Ovalle-Hernández; R.D. Vargas-Rubio;