Implementation of esophageal endoscopic submucosal dissection in Spain: Results from the nationwide registry Enrique Rodríguez de Santiago; Alberto Herreros-de-Tejada; Eduardo Albéniz; Felipe Ramos Zabala; Gloria Fernández-Esparrach; Oscar Nogales; Pedro Rosón; Beatriz Peñas García; Hugo Uchima; Álvaro Terán; Joaquín Rodríguez Sánchez; Diego de Frutos; Sofía Parejo Carbonell; José Santiago; José Díaz Tasende; Charly Guarner Argente; Pedro de María Pallarés; Ana Amorós; Daniel Barranco; Daniel Álvarez de Castro; Raquel Muñoz González; José Carlos Marín-Gabriel;

Timing of endoscopy in high-risk patients with acute upper gastrointestinal bleeding: Results of a multicenter international cohort study Javier Tejedor-Tejada; Benito Hermida; Cristina Camblor; Mohamed Emara; Salem Youssef Mohamed; Jose M. Perez-Pariente;

Exploring the utility of cellular indices in the diagnosis of ulcerative colitis Julio César Moreno Alfonso; Sharom Barbosa-Velásquez; Carlos Delgado-Miguel; Ada Molina Caballero; Sara Hernández-Martín; Alberto Pérez Martínez; María Concepción Yárnoz Irazábal;