1. IBD Referral Center Department of Gastroenterology Careggi University Hospital Florence Italy
2. Department of Experimental and Clinical Biomedical Sciences ‘Mario Serio’ University of Florence Florence Italy
3. Gastroenterology Department of Clinical Medicine and Surgery AOU Federico II Napoli Napoli Italy
4. IBD Center Gastroenterology Unit Rho Hospital ASST Rhodense Milan Italy
5. CEMAD – IBD UNIT Dipartimento di Scienze Mediche e Chirurgiche Fondazione Policlinico Universitario “A. Gemelli” IRCCS Rome Italy
6. Department of Health Science Magna Graecia University Catanzaro Italy
7. IBD‐Unit Department. of Clinical and Experimental Medicine University of Messina Messina Italy
8. Department of Gastroenterology and Endoscopy Fondazione “Casa Sollievo della Sofferenza” IRCCS San Giovanni Rotondo Italy
9. IBD Unit San Filippo Neri Hospital Rome Italy
10. Inflammatory Bowel Disease Unit‐Azienda Ospedaliera‐University of Padua Padua Italy
11. Gastroenterology Unit Campus Bio‐Medico University Rome Italy
12. Department of Medical Science and Public Health Gastroenterology Unit University of Cagliari Cagliari Italy
13. Department of Gastroenterology and Center for Autoimmune Liver Diseases European Reference Network on Hepatological Diseases (ERN RARE‐LIVER) Fondazione IRCCS San Gerardo dei Tintori Monza Italy
14. Department of Medical Sciences University of Turin Turin Italy
15. IBD Center IRCCS Humanitas Research Hospital Milan Italy
16. Department of Biomedical Sciences Humanitas University Milan Italy
17. Gastroenterology and Endoscopy IRCCS Ospedale San Raffaele and University Vita‐Salute San Raffaele Milan Italy
18. BD Unit Gastroenterology and Digestive Endoscopy San Camillo‐Forlanini Hospital I Rome Italy