[1] CHU Timone, Serv Hepatogastroenterol, 264 Rue St Pierre, F-13385 Marseille 05, France
[2] Univ Mediterranee, UMR 911, 27 Blvd Jean Moulin, F-13005 Marseille, France
[3] CHU Timone, Serv Radiol, 264 Rue St Pierre, F-13385 Marseille 05, France
[4] Aix Marseille Univ, UMRS SESSTIM 912, IRD, F-13385 Marseille, France
[5] CHU Timone, Serv Sante Publ & Informat Med, 264 Rue St Pierre, F-13385 Marseille 05, France