1. Departments of Hepatobiliary Surgery and Liver Transplantation; Hôpital Pitié Salpêtrière; Assistance Publique Hopitaux de Paris; Paris France
2. Université Pierre et Marie Curie; Paris 6
3. Department of Hepatobiliary surgery and Liver Transplantation; Hopital Beaujon; Assistance Publique Hopitaux de Paris; Paris France
4. Department of Hepatology; Hopital Pitié Salpêtrière; Assistance Publique Hopitaux de Paris; Paris France
5. Department of Pathology; Hopital Pitié Salpêtrière; Assistance Publique Hopitaux de Paris; Paris France
6. Department of Biostatistics; Hopital Saint Antoine; Assistance Publique Hopitaux de Paris; Paris France