Recent trends in opiate dependence.
D006801:Humans; D008691:Methadone / Q000627:therapeutic use; D009294:Narcotics; D009892:Opium; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000534:rehabilitation; D006113:United Kingdom
D009294:Narcotics; D009892:Opium; D008691:Methadone