title: A simple method for the determination of dependence-producing drugs by gas chromatography.
mesh_terms: D000818:Animals; D002849:Chromatography, Gas / Q000379:methods*; D003042:Cocaine / Q000652:urine; D003061:Codeine / Q000652:urine; D006801:Humans; D008297:Male; D008614:Meperidine / Q000652:urine; D008691:Methadone / Q000652:urine; D008694:Methamphetamine / Q000652:urine; D009020:Morphine / Q000652:urine; D009269:Nalorphine / Q000652:urine; D010423:Pentazocine / Q000652:urine; D004364:Pharmaceutical Preparations / Q000652:urine*; D051381:Rats; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D004364:Pharmaceutical Preparations; D008694:Methamphetamine; D009020:Morphine; D008614:Meperidine; D003042:Cocaine; D010423:Pentazocine; D009269:Nalorphine; D008691:Methadone; D003061:Codeine