Antithrombotic prophylaxis use and incidence of venous thromboembolism in lung cancer surgery: An observational retrospective study Tomás Rubio; María Ibáñez; Clara Fernández-Arias; Manuel Carrasco; Alma Queralt; María Rodríguez; Pedro Ruiz-Artacho; Ramón Lecumberri;

Gastroesophageal reflux management after vertical sleeve gastrectomy Ester Martínez Negro; Sagrario Martínez Cortijo;

Evaluation of the usefulness of the Clavien-Dindo classification of surgical complications Henry Golder; Daniel Casanova; Vassilios Papalois;