title: Trends in the prevalence of alcohol and other drug use among Ontario students: 1977-1983.
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D000428:Alcohol Drinking; D002170:Canada; D005260:Female; D006801:Humans; D008297:Male; D019966:Substance-Related Disorders / Q000453:epidemiology*