[1] Ctr Henri Becquerel, Dept Med Informat, Rue Amiens CS 11516, F-76038 Rouen 1, France
[2] Rouen Univ Hosp, Res Grp Dynam & Events Care Pathways, F-76000 Rouen, France
[3] Rouen Univ Hosp, Dept Digest Surg, F-76000 Rouen, France
[4] Rouen Univ Hosp, Dept Hepatogastroenterol, F-76000 Rouen, France