title: Estimating the prevalence of opioid dependence.
authors.forename: R
authors.initials: R
authors.lastname: Hartnoll
authors.forename: R
authors.initials: R
authors.lastname: Lewis
authors.forename: M
authors.initials: M
authors.lastname: Mitcheson
authors.forename: S
authors.initials: S
authors.lastname: Bryer
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D009294:Narcotics; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D009294:Narcotics