1. Department of Gastroenterology Amiens University Hospital, and PeriTox, Université de Picardie Amiens France
2. Groupe d'étude des Affections Inflammatoires du tube Digestif, GETAID Paris France
3. Department of Gastroenterology CHU of Saint‐Etienne Saint‐Etienne France
4. Department of Gastroenterology CHU of Montpellier Montpellier France
5. Department of Gastroenterology and Inserm NGERE U1256 Nancy University Hospital, University of Lorraine Vandoeuvre‐lès‐Nancy France
6. Department of Gastroenterology and Clinical Nutrition CHU of Nice and University Côte d'Azur Nice France
7. Department of Gastroenterology CHU Beaujon, APHP Clichy France
8. Department of Gastroenterology CHU Kremlin‐Bicetre, APHP Kremlin‐Bicetre France
9. Department of Gastroenterology CHU of Lille Lille France
10. Service d'Hépato‐Gastroentérologie et Oncologie Digestive CHU de Bordeaux, Hôpital Haut‐Lévêque, Université de Bordeaux Bordeaux France
11. Department of Gastroenterology CHU of Lyon Lyon France
12. Hépato‐Gastro‐Entérologie et Assistance Nutritionnelle Inserm CIC 1413, Inserm UMR 1235, Institut des Maladies de l'Appareil Digestif (IMAD), Nantes Université, CHU Nantes Nantes France
13. Department of Gastroenterology CHU of Marseille Marseille France
14. Department of Gastroenterology CHU of Limoges Limoges France
15. Department of Gastroenterology and Pancreatology CHU of Toulouse RANGUEIL Toulouse France
16. Department of Gastroenterology CH of Toulon Toulon France
17. Department of Gastroenterology CH of Roubaix Roubaix France
18. Gastroenterology Department Henri Mondor Hospital, Fédération Hospitalo‐Universitaire TRUE InnovaTive theRapy for immUne disordErs, Paris Est Créteil University UPEC, Assistance Publique‐Hôpitaux de Paris (AP‐HP) Créteil France
19. Department of Gastroenterology Hopital Cochin Paris France
20. Department of Gastroenterology CHU of Reims Reims France
21. Department of Gastroenterology Hopital Saint‐Louis Paris France
22. Department of Gastroenterology Centre Hospitalier de Dunkerque Dunkirk France
23. Department of Gastroenterology UMR 1098, University of Franche‐Comté Besançon France