[1] Hop Beaujon, Serv Gastroenterol Pancreatol, Pole Malad Appareil Digest, F-92110 Clichy, France
[2] Hop Beaujon, Serv Pathol, F-92110 Clichy, France
[3] Hop Beaujon, Serv Radiol, F-92110 Clichy, France
[4] Hop Beaujon, Serv Chirurg Digest, Pole Malad Appareil Digest, F-92110 Clichy, France