[1] CHU Nimes, Serv Gynecol & Obstet, F-30029 Nimes, France
[2] CHU Nimes, Serv Chirurg Digest, F-30029 Nimes, France
[3] CHU Nimes, Serv Gastroenterol, F-30029 Nimes, France
[4] Clin Mutualiste Beausoleil, Serv Radiol, F-34000 Montpellier, France
[5] Inst Claudius Regaud, Dept Biostat, F-30000 Toulouse, France