title: Methadone maintenance: 235 consecutive patients.
mesh_terms: D000328:Adult; D005006:Ethnicity / Q000523:psychology; D005260:Female; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D007087:Illinois; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D012424:Rural Population; D012959:Socioeconomic Factors
chemical_list: D008691:Methadone