Comparison and combination of three data sources from patient medical records to determine optimal quantification of postoperative morbidity according to the Clavien Dindo Classification and the Comprehensive Complication Index. A prospective study Roberto de la Plaza Llamas; Paula Soto García; Wenzhong Sun; Ignacio Antonio Gemio del Rey; Daniel Alejandro Díaz Candelas; Ludovica Gorini; Farah Al Shwely Abduljabar; Raquel Aránzazu Latorre Fragua;

Comparison of weight loss and metabolic syndrome parameters between sleeve gastrectomy and Roux-en-Y gastric bypass: A propensity score analysis María Asunción Acosta-Mérida; Raquel Bañolas-Suárez; Julia Díaz-Dávila; Pedro Saavedra-Santana; Joaquín Marchena-Gómez;

Impact of anesthetic technique on time to discharge of patients undergoing proctological surgery in major outpatient surgery Armando Cuesta Amigo; Nazrin Bakhshaliyeva; Javier García Septiem; Enrique Alday Muñoz;