title: Commentary on Mehta et al. (2012): Natural history of injecting drug use.
authors.affiliation: University of Bristol-Department of Social Medicine, UK. matthew.hickman@bristol.ac.uk
authors.forename: Matt
authors.initials: M
authors.lastname: Hickman
authors.forename: Peter
authors.initials: P
authors.lastname: Vickerman
authors.forename: Louisa
authors.initials: L
authors.lastname: Degenhardt
mesh_terms: D006801:Humans; D008297:Male; D015819:Substance Abuse, Intravenous / Q000453:epidemiology*