[1] UNSW Sydney, Kirby Inst, Sydney, NSW, Australia
[2] Int Network Hepatitis Subst Users, New York, NY USA
[3] Univ Bristol, Sch Social & Community Med, Bristol, Avon, England
[4] Univ Montreal, CRCHUM, Montreal, PQ, Canada
[5] Arud Ctr Addict Med, Zurich, Switzerland
[6] Akershus Univ Hosp, Dept Infect Dis, Lorenskog, Norway
[7] Albert Einstein Coll Med, Dept Med, Div Gen Internal Med, Bronx, NY 10467 USA
[8] Montefiore Med Ctr, 111 E 210th St, Bronx, NY 10467 USA
[9] Ludwig Maximilians Univ Munchen, Munich, Germany
[10] Praxiszentrum Munich, Munich, Germany