Impact of the COVID-19 pandemic in colorectal cancer diagnosis and presentation Gonzalo Hijos-Mallada; Enrique Alfaro; Mercedes Navarro; Pablo Cañamares; Inés Ariño; Mara Charro; Carlo Bruno; Marina Solano; Ana Pardillos; Cristina Jimeno; Patricia Carrera-Lasfuentes; Angel Lanas; Maria Jose Domper-Arnal;

Secondary uncovered versus fully-covered metal stents for the management of occluded stent in unresectable distal malignant biliary obstruction Javier Tejedor-Tejada; Aranzazu Alvarez-Alvarez; Jose Manuel Olmos; Ana Cristina González-Bernal; Andrea Jimenez-Jurado; Samuel Robles-Gaitero; Jose M. Perez-Pariente;

A booster dose of SARS-COV-2 vaccine improves suboptimal seroconversion rates in patients with inflammatory bowel disease. Results of a prospective multicenter study of GETECCU (VACOVEII study) Diego Casas Deza; Ana Belén Julián Gomara; Eva Caudevilla Biota; Belén Beltrán; Eugeni Domènech; Ana Gutiérrez Casbas; Miriam Mañosa; Yamile Zabana; Lourdes Roc Alfaro; Emilio Valverde Romero; Elena García González; Beatriz Sicilia; Viviana Laredo; Maria José Alcalá Escriche; Lucia Madero Velázquez; Rocío Ferreiro-Iglesias; Antonia Palmero Pérez; Margalida Calafat; Saioa Rubio Iturria; Irene Moraleja Yudego; Yolanda Ber Nieto; Sandra García Mateo; Javier P. Gisbert; Raquel Vicente Lidón; Lara Arias; Erika Alfambra; Ana Belén Doñate Borao; Elena Peña González; Pilar Corsino Roche; Miren Vicuña Arregui; Ainara Elorza; Manuel Domínguez Cajal; María Chaparro; Manuel Barreiro-de Acosta; Santiago García-López;