[1] Hop Paul Brousse, AP HP, Ctr Hepato Biliaire, F-94800 Villejuif, France
[2] INSERM, Unite 785, F-94800 Villejuif, France
[3] INSERM, Unite 776, F-94800 Villejuif, France
[4] Univ Paris 11, F-94800 Villejuif, France
[5] Hop Kremlin Bicetre, AP HP, Dept Pathol, Le Kremlin Bicetre, France