title: Heroin maintenance for heroin addicts: issues and evidence.
mesh_terms: D003415:Crime; D004335:Drug and Narcotic Control; D004992:Ethics, Medical; D006077:Government Agencies; D003932:Heroin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D006556:Heroin Dependence / Q000534:rehabilitation; D006801:Humans; D007880:Legislation, Drug; D011057:Politics; D011639:Public Opinion; D012106:Research; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control; D019966:Substance-Related Disorders / Q000534:rehabilitation*; D006113:United Kingdom; D014481:United States
chemical_list: D003932:Heroin