Evolutionary analysis of patient¿s morbidity and mortality in emergency surgical care during the pandemic: Retrospective comparison between first and second waves of COVID-19 Carlos Bustamante Recuenco; Esther María Cano Pecharromán; Gloria María Mendoza Esparrell; Mahur Esmailli Ramos; Javier Broekhuizen Benítez; Leticia Martín Paniagua; Teresa Calderón Duque; Tomás Balsa Marín;

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;

Emergency surgery and trauma care during COVID-19 pandemic. Recommendations of the Spanish Association of Surgeons José Manuel Aranda-Narváez; Luis Tallón-Aguilar; Felipe Pareja-Ciuró; Gonzalo Martín-Martín; Antonio Jesús González-Sánchez; Ignacio Rey-Simó; Gonzalo Tamayo-Medel; Carlos Yánez-Benítez; David Costa-Navarro; Soledad Montón-Condón; Salvador Navarro-Soto; Fernando Turégano-Fuentes; María Dolores Pérez-Díaz; José Ceballos-Esparragón; José María Jover-Navalón; José María Balibrea; Salvador Morales-Conde;