"Mind expanders".
D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking; D002188:Cannabis; D006213:Hallucinogens; D006801:Humans; D007194:India; D009892:Opium; D012940:Social Problems; D019966:Substance-Related Disorders
D006213:Hallucinogens; D009892:Opium