The dagga smoker: a survey.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000428:Alcohol Drinking; D000661:Amphetamine; D001463:Barbiturates; D003042:Cocaine; D005260:Female; D003932:Heroin; D006801:Humans; D007880:Legislation, Drug; D008238:Lysergic Acid Diethylamide; D008297:Male; D009892:Opium; D012572:School Health Services; D012907:Smoking / Q000453:epidemiology; D012919:Social Behavior; D012923:Social Class; D013019:South Africa; D019966:Substance-Related Disorders / Q000453:epidemiology*
D001463:Barbiturates; D003932:Heroin; D009892:Opium; D008238:Lysergic Acid Diethylamide; D000661:Amphetamine; D003042:Cocaine