DUCMA 2.0 project: Update on the current situation of the outpatient surgery units in Spain Dieter Morales-García; Matilde Zaballos García; Juan Carlos Cagigas Lanza; Fernando Docobo Durantez; Luis Antonio Hidalgo Grau;

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;

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;