1. Service d'Hépatologie; Hôpital Henri Mondor; Créteil; France
2. Section of Hepatobiliary Diseases; University of Florida; Gainesville; Florida; USA
3. UO Chirurgia Epato-Bilio-Pancreatica; Istituto Nazionale dei Tumori Regina Elena; Rome; Italy
4. University of Toronto Transplant Institute; Toronto General Hospital; Toronto; Ontario; Canada
5. University Health Network/University of Toronto; Toronto; Ontario; Canada
6. Unidad de Transplante Hepático; Hospital Británico; Buenos Aires; Argentina