[1] Hop Necker Enfants Malad, Microbiol Serv, F-75743 Paris 12, France
[2] Hop Univ Jean Minjoz, Serv Med Interne, F-25030 Besancon, France
[3] Hop Necker Enfants Malad, Serv Hematol, F-75743 Paris 15, France
[4] Hop Cochin, Serv Hepatol Gastroenterol, F-75014 Paris, France
[5] Clin Bois Verrieres, F-92160 Antony, France
[6] CHRU Pontchaillou, Serv Hepatol Gastroenterol, F-35033 Rennes, France
[7] Ctr Hosp Denain, F-59723 Denain, France
[8] Hop Sud, F-35056 Rennes 2, France
[9] Ctr Hosp Intercommunal, Serv Med Interne & Hepatogastroenterol, F-94010 Creteil, France