1. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
2. Division of Gastroenterology, Department of Medicine, Western University, London, ON N6A 4V2, Canada
3. IBD Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
4. Department of Endoscopy, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
5. Division of Colon and Rectal Surgery, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy