Assessment of postoperative morbidity in Spanish hospitals: Results from a national survey Roberto de la Plaza Llamas; David Parés; Víctor Soria Aledó; Roger Cabezali Sánchez; Miguel Ruiz Marín; Ana Senent Boza; Manuel Romero Simó; Natalia Alonso Hernández; Helena Vallverdú-Cartié; Julio Mayol Martínez;

Evaluation of an enhanced recovery after lung surgery (ERALS) program in lung cancer lobectomy: An eight-year experience Manuel de la Matta; Enar A. Buisán Fernández; María Alonso González; Daniel López-Herrera; Jesús Acosta Martínez; Ana I Blanco Orozco;

Laparoscopic vs open approach for acute cholecystitis in octogenarians. A prospective multicenter observational nationwide study N. Lluís; C. Villodre; P. Zapater; M. Cantó; L. Mena; J.M. Ramia; F. Lluís;