title: Extraction and recovery of organophosphorus metabolites from urine using an anion exchange resin.
mesh_terms: D000837:Anion Exchange Resins; D002852:Chromatography, Ion Exchange; D006801:Humans; D007306:Insecticides / Q000652:urine*; D007475:Ion Exchange Resins; D008722:Methods; D009943:Organophosphorus Compounds
chemical_list: D000837:Anion Exchange Resins; D007306:Insecticides; D007475:Ion Exchange Resins; D009943:Organophosphorus Compounds