Alcohol, cannabis, cocaine and other substance use among Ontario adults 1977-1987.
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D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking; D003042:Cocaine; D006801:Humans; D008385:Marijuana Smoking / Q000453:epidemiology*; D008875:Middle Aged; D009864:Ontario; D019966:Substance-Related Disorders / Q000453:epidemiology*
D003042:Cocaine