1. Department of Gastroenterology and Inserm NGERE U1256, Nancy University Hospital, University of Lorraine, Vandoeuvre-lès-Nancy, France
2. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
3. Department of Gastroenterology, IBD Center, Humanitas Clinical and Research Center, IRCCS, Rozzano, Milan, Italy