Drug dependence in Britain: a critical time.
D000701:Analgesics, Opioid; D011307:Drug Prescriptions / Q000592:standards; D006801:Humans; D008691:Methadone / Q000031:analogs & derivatives*; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000517:prevention & control*; D006113:United Kingdom
D000701:Analgesics, Opioid; D008691:Methadone; C007527:dipipanone