[1] Univ Toronto, Toronto, ON, Canada
[2] Vall dHebron Hosp Gen, Serv Med Interna Hepatol, Barcelona, Spain
[3] Auckland City Hosp, Auckland, New Zealand
[4] Harvard Univ, Sch Med, Boston, MA USA
[5] Gilead Sci Inc, Foster City, CA 94404 USA
[6] Hop Beaujon, Clichy, France