title: Afghanistan has a sizeable problem with opioid use.
authors.affiliation: Centre for Youth Substance Abuse, University of Queensland, Brisbane, QLD, Australia; National Addiction Centre, King's College London, London, UK. Electronic address: w.hall@uq.edu.au.
authors.forename: Wayne D
authors.initials: WD
authors.lastname: Hall
authors.affiliation: National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia; School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia; Department of Global Health, School of Public Health, University of Washington, Seattle, WA, USA; Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, VIC, Australia.
authors.forename: Louisa
authors.initials: L
authors.lastname: Degenhardt
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D019966:Substance-Related Disorders / Q000453:epidemiology*