title: Methadone maintenance treatment. A ten-year perspective.
mesh_terms: D001291:Attitude of Health Personnel; D001294:Attitude to Health; D005069:Evaluation Studies as Topic; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D012927:Social Control, Informal; D014481:United States
chemical_list: D008691:Methadone