[1] CHU Ambroise Pare, Serv Hepatogastroenterol & Oncol Digest, F-92100 Boulogne, France
[2] Inst Gustave Roussy, Villejuif, France
[3] Cvitkov & Associes Consultants, Le Kremlin Bicetre, France
[4] Inst J Paoli I Calmettes, F-13009 Marseille, France
[5] Ctr Claudius Regaud, Toulouse, France
[6] Hop Avicenne, F-93009 Bobigny, France
[7] CHU Robert Debre, Reims, France
[8] Clin Armoricaine Radiol, St Brieuc, France
[9] Ctr Hosp Intercommunal, Villeneuve St Georges, France
[10] Ctr Hosp R Dubos, Pontoise, France