Necessary safeguards when prescribing opioid drugs to addicts: experience of drug dependence clinics in London.
D000328:Adult; D011307:Drug Prescriptions; D004335:Drug and Narcotic Control; D006801:Humans; D008131:London; D009294:Narcotics / Q000008:administration & dosage*; D009293:Opioid-Related Disorders / Q000628:therapy*; D010044:Outpatient Clinics, Hospital
D009294:Narcotics