1. Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Gastroenterology and Endoscopy Unit Milan Italy
2. Department of Pathophysiology and Transplantation Università degli Studi di Milano Milan Italy
3. Gastroenterology Unit Bolognini Hospital Bergamo Italy
4. Department of Clinical and Experimental Sciences University of Brescia Spedali Civili Brescia Italy
5. Division of Gastroenterology and Center for Autoimmune Liver Diseases Department of Medicine and Surgery University of Milano‐Bicocca Monza Italy
6. European Reference Network on Hepatological Diseases (ERN RARE‐LIVER) San Gerardo Hospital Monza Italy
7. Gastroenterology and Digestive Endoscopy Unit Busto Arsizio Hospital Varese Italy
8. Gastroenterology and Endoscopy Unit Ospedale Maggiore Crema Italy
9. Gastroenterology and Liver Unit ASST Santi Paolo e Carlo Ospedale San Paolo Milan Italy
10. Department of Health Sciences Univeristà degli Studi di Milano Milan Italy
11. Gastroenterology and Endoscopy Unit Gallarate Hospital Varese Italy
12. Gastroenterology and Digestive Endoscopy Unit Valduce Hospital Como Italy
13. IBD Center Humanitas Clinical and Research Center Milan Italy
14. Department of Biomedical Sciences Humanitas University Milan Italy