Methadone maintenance: an update.
D006801:Humans; D008691:Methadone / Q000009:adverse effects / Q000627:therapeutic use*; D008692:Methadyl Acetate / Q000627:therapeutic use; D009293:Opioid-Related Disorders / Q000523:psychology / Q000534:rehabilitation*
D008692:Methadyl Acetate; D008691:Methadone