Conversion from laparoscopic to open cholecystectomy: Risk factor analysis based on clinical, laboratory, and ultrasound parameters J. Morales-Maza; J.H. Rodríguez-Quintero; O. Santes; J.L. Aguilar-Frasco; G. Romero-Vélez; E. Sánchez García-Ramos; G. Sánchez-Morales; P. León; F.U. Pastor-Sifuentes; S. Mier y Terán-Ellis; F. Álvarez-Bautista; U. Clemente-Gutiérrez; M.A. Mercado-Díaz;

Umbilical cutaneous metastasis as initial presentation of Sigmoid adenocarcinoma G. Renau; J. Domènech; A. Sánchez;

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;