1. Department of Colorectal Surgery Beaujon Hospital Assistance Publique‐Hôpitaux de Paris, (AP‐HP) University Denis Diderot (Paris VII) Clichy France
2. Department of Gastro‐enterology, Inflammatory Bowel Disease and Nutritive Assistance Beaujon Hospital Assistance Publique‐Hôpitaux de Paris, (AP‐HP) University Denis Diderot (Paris VII) Clichy France