title: Methadone maintenance: the effect of knowledge of dosage.
mesh_terms: D001290:Attitude; D003142:Communication; D003163:Competitive Behavior; D005260:Female; D003932:Heroin; D006556:Heroin Dependence / Q000534:rehabilitation / Q000628:therapy; D006801:Humans; D008297:Male; D008691:Methadone / Q000008:administration & dosage* / Q000627:therapeutic use; D010817:Physician-Patient Relations; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control; D019966:Substance-Related Disorders / Q000628:therapy*; D011795:Surveys and Questionnaires
chemical_list: D003932:Heroin; D008691:Methadone