title: Detection of biotransformed cocaine in urine from drug abusers.
mesh_terms: D001711:Biotransformation; D002855:Chromatography, Thin Layer; D003042:Cocaine / Q000378:metabolism / Q000652:urine*; D006801:Humans; D007202:Indicators and Reagents; D012995:Solubility; D012997:Solvents; D019966:Substance-Related Disorders; D014326:Tropanes / Q000652:urine
chemical_list: D007202:Indicators and Reagents; D012997:Solvents; D014326:Tropanes; D003042:Cocaine