Cocaine use among adults and students.
D000293:Adolescent; D000328:Adult; D002648:Child; D003042:Cocaine; D005260:Female; D006801:Humans; D008297:Male; D009864:Ontario; D012959:Socioeconomic Factors; D019966:Substance-Related Disorders / Q000453:epidemiology*
D003042:Cocaine