title: Commentary: Modelling and understanding differences in human immunodeficiency and hepatitis C virus epidemiology in injection drug users.
authors.affiliation: Department of Social and Preventive Medicine, University Berne, Berne, Switzerland.
authors.forename: Marcel
authors.initials: M
authors.lastname: Zwahlen
authors.forename: David
authors.initials: D
authors.lastname: Vlahov
mesh_terms: D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D019698:Hepatitis C, Chronic / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D015233:Models, Statistical; D016485:Needle Sharing / Q000706:statistics & numerical data; D015819:Substance Abuse, Intravenous / Q000150:complications*