1. Department of Digestive and Hepato-Pancreato-Biliary Surgery; Assistance Publique, Hôpitaux de Paris, Pitié-Salpêtrière Hospital, University Institute of Cancerology (Paris VI), Medicine Sorbonne University; France
2. Department of Pathology; Assistance Publique, Hôpitaux de Paris, Pitié-Salpêtrière Hospital, University Institute of Cancerology (Paris VI), Medicine Sorbonne University; France