Affiliation: | 1. Beaujon Hospital, Department of Digestive Endoscopy, Assistance Publique Hôpitaux de Paris, Clichy, France;2. Department of Gastroenterology, Jean Mermoz Private Hospital, Lyon, France;3. Department of Gastroenterology, Edouard Herriot Hospital, Lyon, France;4. Department of Gastroenterology, Amiens-Picardie University Hospital, Amiens, France;5. Department of Pathology, Gustave Roussy Institute, Villejuif, France;6. Department of Pathology, Beaujon Hospital, Clichy, France;8. Department of Hepatobiliary and Pancreatic Surgery, Beaujon Hospital, Clichy, France;9. Department of Gastroenterology and Pancreatology, Beaujon Hospital, Clichy, France;7. Department of Pathology, Bichat Hospital, Paris, France;10. Department of Endoscopy, Trocadéro Clinic, Paris, France |