| Affiliation: | 1. Department of Pathophysiology and Transplantation, Università degli Studi di Milano – Italy, Gastroenterology and Endoscopy Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy;2. Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy;3. Division of Gastroenterology, Department of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Cisanello Hospital, Pisa, Italy;4. Division of General and Bariatric Surgery, Department of Surgery, Second University of Naples, Naples, Italy;5. Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri |
