The client-oriented data acquisition process (CODAP-77).
D006801:Humans; D007255:Information Services; D009316:National Institutes of Health (U.S.); D009892:Opium / Q000031:analogs & derivatives; D010351:Patient Discharge; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000628:therapy / Q000639:trends; D014481:United States
D009892:Opium