Incidence and risk factors for de novo cholelithiasis after bariatric surgery Ainhoa Andrés-Imaz; Laura Martí-Gelonch; Emma Eizaguirre-Letamendia; José Ignacio Asensio-Gallego; José María Enríquez-Navascués;

National survey on the treatment of cholelitiasis in Spain during the initial period of the COVID-19 pandemic Benedetto Ielpo; Mikel Prieto; Irene Ortega; José María Balibrea; Inés Rubio-Pérez; Montse Juvany; Miguel Ángel Gómez-Bravo; José Manuel Ramia;

Major Ambulatory Surgery in Breast Diseases Andrés Garcia-Vilanova Comas; Judit Nadal Gisbert; Raquel Santofimia Chordá; Carlos Fuster Diana; Alejandra de Andrés Gómez; José Medrano González; Verónica Gumbau Puchol; Cristóbal Zaragoza Fernández;