PROFUGO study protocol: Predictive model for the early diagnosis of anastomotic leak after esophagectomy and gastrectomy Rocío Pérez Quintero; Marcos Bruna Esteban; Antonio José Serrano López;

First gastroduodenal artery approach for gastric cancer lymphadenectomy in situations of anatomical variations Alberto García Picazo; Ana Pérez Zapata; Elías Rodríguez Cuéllar; Eduardo Ferrero Herrero;

High-grade dysplasia in the cystic duct after cholecystectomy Alberto García Picazo; Viviana Vega Novillo; Rosa González Martín; Alfredo Vivas López; Iago Justo Alonso;