Affiliation: | 1. Department of Gastroenterology and Hepatology, Fundación Santa Fe de Bogotá y Universidad de los Andes, Facultad de Medicina, , Bogotá, Colombia;2. Solutio ‐ Integrated Pathology Sevices, , Barcelona, Spain;3. GI/Endoscopy Unit, Institut de Malalties Digestives i Metaboliques, Hospital Clinic, University of Barcelona, , Barcelona, Spain |