A psychiatrist looks at drug abuse.
D002188:Cannabis; D003932:Heroin; D006801:Humans; D007880:Legislation, Drug; D008606:Mental Processes; D008691:Methadone / Q000627:therapeutic use; D009787:Occupational Medicine; D011570:Psychiatry; D019966:Substance-Related Disorders / Q000188:drug therapy; D014481:United States
D003932:Heroin; D008691:Methadone