1. Department of Hepatogastroenterology, Regional University Hospital of Nancy, Nancy, France
2. Department of Digestive Surgery, Regional University Hospital of Nancy, Nancy, France
3. Department of Hepatogastroenterology, Dupuytren Hospital, Limoges, France
4. Gastroenterology and Endoscopy Unit, Pavillon L, Edouard Herriot Hospital, Lyon, France
5. BioEM, XLim, UMR 7252, CNRS, Limoges, France