Training in ambulatory surgery. A pending subject in our country Dieter Morales-García; Fernando Docobo Durantez; JMª Capitán Vallvey; Juan Manuel Suarez Grau; Xavier Serra Aracil; Mª Eugenia Campo Cimarras; Salustiano González Vinagre; Luis Antonio Hidalgo Grau; JMª Puigcercos Fusté; Zoraida Valera Sánchez; Vicente Vega Ruiz; Cristóbal Zaragoza Fernández;

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;