Peer drug use as estimated by current users, ex-users, and nonusers of marijuana.
D000293:Adolescent; D002188:Cannabis; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D009820:Ohio; D010379:Peer Group; D012737:Sex Factors; D012938:Social Perception; D019966:Substance-Related Disorders / Q000453:epidemiology*