title: Comparative cannabis use data.
authors.forename: M D
authors.initials: MD
authors.lastname: Abraham
authors.forename: P D
authors.initials: PD
authors.lastname: Cohen
authors.forename: D J
authors.initials: DJ
authors.lastname: Beukenhorst
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003625:Data Collection; D006801:Humans; D008385:Marijuana Smoking / Q000453:epidemiology*; D009426:Netherlands; D015995:Prevalence