[1] Univ Clin, Leipzig, Germany
[2] Duke Univ, Med Ctr, Durham, NC USA
[3] Vertex Pharmaceut Inc, Cambridge, MA USA
[4] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[5] Liver Inst Virginia, Newport News, VA USA
[6] Univ Vienna, Vienna, Austria
[7] Univ Toronto, Toronto, ON, Canada
[8] Hop Henri Mondor, F-94010 Creteil, France
[9] Goethe Univ Frankfurt, Med Ctr, Frankfurt, Germany
[10] Univ Amsterdam, Acad Med Ctr, NL-1105 AZ Amsterdam, Netherlands
[11] Royal Free & Univ Coll Med Sch, London WC1E 6BT, England