The social context of first marijuana use.
D002188:Cannabis; D003657:Decision Making; D005260:Female; D006127:Group Structure; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009294:Narcotics; D010379:Peer Group; D012737:Sex Factors; D012919:Social Behavior; D012931:Social Environment; D019966:Substance-Related Disorders / Q000453:epidemiology*; D014481:United States
D009294:Narcotics