1. Department of Digestive and Oncological Surgery AP‐HP; Hôpital Européen Georges Pompidou Paris University Paris France
2. Department of Hepato‐gastroenterology and Digestive Oncology Hôpital Européen Georges Pompidou, AP‐HP Paris University Paris France
3. Department of Digestive and Oncological Surgery Lille University Hospital Lille France
4. Department of Hepato‐gastroenterology and Digestive Oncology CHR La Source Orléans France
5. Biostatistics, FFCD, EPICAD INSERM LNC‐UMR 1231 University of Burgundy and Franche Comté Dijon France
6. Department of Digestive Surgery Institut Paoli Calmettes Marseille France
7. Department of Oncology Polyclinique Bordeaux Nord Bordeaux France
8. Department of Digestive Oncology CHU Robert Debré Reims France
9. Department of Medical Oncology CH Beauvais Beauvais France
10. Department of Digestive Surgery AP‐HP CHU Henri Mondor Créteil France
11. Department of Digestive Surgery CHU Carémeau Nîmes France
12. Department of Digestive Surgery Amiens University Hospital France
13. Department of Digestive Surgery CHU Lyon Sud Lyon France
14. Department of Gastroenterology CHU Rennes, Rennes 1 University Rennes France
15. Department of Digestive Surgery CHU Rangueil Toulouse France
16. Department of GastroenterologyInfirmerie Protestante Caluire‐et‐Cuire France
17. Department of Gastroenterology Paris VII, AP‐HP BCHU Bichat Paris France
18. Department of Digestive Surgery CHU Hautepierre Strasbourg France
19. Hepato‐gastroenterology and Digestive Oncology Department FFCD, EPICAD INSERM LNC‐UMR 1231 CHU Dijon University of Burgundy and Franche Comté Dijon France