Helicobacter pylori infection is associated with decreased odds for eosinophilic esophagitis in Mexican patients José Carlos Cessa-Zanatta; Diego García-Compeán; Héctor Jesús Maldonado-Garza; Omar David Borjas-Almaguer; Alan Rafael Jiménez-Rodríguez; Ángel Noé del Cueto-Aguilera; José Alberto González-González;

Urgent endoscopy versus early endoscopy: Does urgent endoscopy play a role in acute non-variceal upper gastrointestinal bleeding? Javier Lucas Ramos; Jorge Yebra Carmona; Irene Andaluz García; Marta Cuadros Martínez; Patricia Mayor Delgado; Maria Ángeles Ruiz Ramírez; Joaquín Poza Cordón; Cristina Suárez Ferrer; Ana Delgado Suárez; Nerea Gonzalo Bada; Consuelo Froilán Torres;

Surgery and emergency gastrointestinal endoscopy during the Covid-19 pandemic Luis Bujanda; Paula Arratibel; Ines Gil; Silvia Torrente; Maider Martos; Jose M. Enriquez-Navascues;