1. Department of Gastroenterology; University of Ghent; Ghent Belgium
2. Department of Gastroenterology; Ljubljana University Medical Centre; Ljubljana Slovenia
3. Department of Gastroenterology; IBD Center, Humanitas Clinical and Research Center; Milan Italy
4. Inserm U954; University Hospital of Nancy, Lorraine University; Vandoeuvre-lès-Nancy France
5. Department of Biomedical Sciences; Humanitas University; Milan Italy