title: Experience with the use of the Toxi-Lab TLC system in screening for morphine/heroin abuse.
mesh_terms: D002855:Chromatography, Thin Layer; D005966:Glucuronidase; D003932:Heroin / Q000652:urine*; D006801:Humans; D009020:Morphine / Q000652:urine*; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D003932:Heroin; D009020:Morphine; D005966:Glucuronidase