1. Gastroenterology Unit, Rho Hospital, ASST Rhodense , Rho , Italy
2. Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele, University Vita-Salute San Raffaele , Milan , Italy
3. Division of Gastroenterology, Department of Medical Sciences, Università di Torino , Turin , Italy
4. IBD Unit, IRCCS Humanitas Research Hospital , Rozzano , Italy
5. Department of Biomedical Sciences, Humanitas University , Pieve Emanuele , Italy