title: The quantitative determination of heroin in illicit preparations by gas chromatography.
mesh_terms: D002784:Cholesterol / Q000592:standards; D002849:Chromatography, Gas; D004304:Dosage Forms; D003932:Heroin / Q000032:analysis* / Q000592:standards; D006801:Humans; D008722:Methods; D019966:Substance-Related Disorders
chemical_list: D004304:Dosage Forms; D003932:Heroin; D002784:Cholesterol