Drug use patterns among South African undergraduates.
D000293:Adolescent; D000328:Adult; D001294:Attitude to Health; D002188:Cannabis; D005190:Family; D005260:Female; D006801:Humans; D008297:Male; D012572:School Health Services; D012737:Sex Factors; D013019:South Africa; D013334:Students; D019966:Substance-Related Disorders / Q000453:epidemiology*