Affiliation: | a2nd Propaedeutic Department of Internal Medicine, Gastroenterology–Hepatology Division, Hippokration Hospital, Aristotle University of Thessaloniki, 10 Sarantaporou Street, 54640 Thessaloniki, Greece;bPathology Department of Hippokration Hospital, Thessaloniki, Greece;cDepartment of Endoscopy and Motility Unit, G. Gennimatas General Hospital, Thessaloniki, Greece |