A heroin maintenance program in the United States?
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D000368:Aged; D044383:Black People; D002188:Cannabis; D003415:Crime; D005260:Female; D003932:Heroin / Q000627:therapeutic use; D006556:Heroin Dependence; D006801:Humans; D007880:Legislation, Drug; D008297:Male; D008691:Methadone / Q000627:therapeutic use; D008722:Methods; D008875:Middle Aged; D009892:Opium; D012737:Sex Factors; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control; D019966:Substance-Related Disorders / Q000188:drug therapy*; D006113:United Kingdom; D014481:United States; D044465:White People
D003932:Heroin; D009892:Opium; D008691:Methadone