[1] Normandie Univ UNICAEN, Caen, France
[2] Caen Univ Hosp, Hepatogastroenterol, Caen, France
[3] Normandie Univ UNICAEN, ANTICIPE, U1086, INSERM,UCN, Caen, France
[4] Brest Univ Hosp, Hepatogastroenterol, Brest, France
[5] Univ Bretagne Occidentale, Registry Digestif Canc Finistere, EA 7479, SPURBO, Brest, France
[6] UFR Sante Bourgogne, Registry Digestif Canc, INSERM, UMR 1231, Dijon, France
[7] Registry Digestif Canc Calvados, Caen, France