Trends of social networks in the American College of Surgeons Clinical Congress and the Congreso Nacional de Cirugía. Analysis of the #ACSCC20 and #CNCirugia2020 Sergi Sanchez-Cordero; Salvador Morales-Conde; Raquel Sánchez Santos; Inés Rubio Perez; Roser Farré Font; Jose Luis Ramos Rodriguez; José M Balibrea del Castillo; Julio Mayol;

Experience in biliopancreatic diversion with duodenal switch: Results at 2, 5 and 10 years Maria Sorribas; Anna Casajoana; Lucía Sobrino; Víctor Admella; Javier Osorio; Jordi Pujol-Gebellí;

Teaching in times of crisis: Virtual classroom AEC. Influence of COVID-19 on surgeons of the future Raquel Sánchez Santos; Salvador Morales Conde; Jose Luis Ramos Rodriguez;