Affiliation: | 1 Department of Medicine, Universidad de Alcalá, Madrid, Spain;2 CIBERehd, Instituto de Salud Carlos III, Madrid, Spain;3 Service of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain;4 Service of Immune Diseases and Oncology, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Madrid, Spain |