The methadone fix.
D000293:Adolescent; D000328:Adult; D000701:Analgesics, Opioid / Q000494:pharmacology / Q000627:therapeutic use*; D014943:Global Health; D006297:Health Services Accessibility; D006801:Humans; D008691:Methadone / Q000494:pharmacology / Q000627:therapeutic use*; D008875:Middle Aged; D019966:Substance-Related Disorders / Q000188:drug therapy* / Q000453:epidemiology
D000701:Analgesics, Opioid; D008691:Methadone