title: The co-morbidities of cannabis use: a comment on Degenhardt et al.
authors.forename: D M
authors.initials: DM
authors.lastname: Fergusson
mesh_terms: D004335:Drug and Narcotic Control; D006801:Humans; D002189:Marijuana Abuse / Q000150:complications*; D016017:Odds Ratio; D011605:Psychoses, Substance-Induced / Q000209:etiology