1. Department of Gastroenterology; Henri Mondor Hospital; APHP; EC2M3-Equipe; Universitaire, Paris Est-Créteil (UPEC) Val de Marne University; Creteil France
2. Department of Gastroenterology; Sorbonne Univeristé; INSERM, Centre de Recherche Saint-Antoine; CRSA; Paris France
3. Department of Gastroenterology; APHP, Saint-Louis hospital; Paris France
4. Department of Gastroenterology; APHP; Bicêtre Hospital; Kremlin Bicêtre France