Age of drug use and the transition from school to work.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D004335:Drug and Narcotic Control; D005260:Female; D006556:Heroin Dependence / Q000453:epidemiology*; D006801:Humans; D008297:Male; D009518:New York; D011647:Puerto Rico / Q000208:ethnology; D012572:School Health Services; D012574:Schools