[1] Natl Inst Publ Hlth, St Maurice, France
[2] Social Secur Hlth Med Ctr Natl Hlth Insurance Sys, Poitiers, France
[3] Social Secur Hlth Med Ctr Coordinating Unit, St Etienne, France
[4] Social Secur Hlth Med Ctr Natl Hlth Insurance Sys, Tours, France
[5] INSERM, Unit 569, Le Kremlin Bicetre, France
[6] Social Secur Hlth Med Ctr Natl Hlth Insurance, St Brieuc, France
[7] CNAMTS, Natl Hlth Insurance Syst, Paris, France
[8] Hop Necker Enfants Malad, Hepatol Unit, Paris, France