title: A review of the evidence for methadone maintenance as a treatment for narcotic addiction.
mesh_terms: D003932:Heroin / Q000037:antagonists & inhibitors; D006801:Humans; D008691:Methadone / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D012917:Social Adjustment; D019966:Substance-Related Disorders / Q000534:rehabilitation*; D006113:United Kingdom; D014481:United States
chemical_list: D003932:Heroin; D008691:Methadone