1. Digestive Surgical Oncology, Equipe Avenir, 14 rue Paul Gaffarel, Dijon21079, France
2. Service de Chirurgie Digestive et Cancérologique, CHU Bocage Central, 14, rue Paul Gaffarel, Dijon Cedex21079, France
3. Digestive Surgical Oncology, University Hospital of Dijon, Dijon, France
4. CIC Epidémiologie Clinique, INSERM CR 1231, Dijon, France
5. Digestive Surgical Oncology, University Hospital of Besançon, Besançon, France