title: Simplification of a urinary metadrenaline assay.
mesh_terms: D004837:Epinephrine / Q000031:analogs & derivatives*; D006801:Humans; D007475:Ion Exchange Resins; D008676:Metanephrine / Q000652:urine*; D011786:Quality Control; D013056:Spectrophotometry, Ultraviolet
chemical_list: D007475:Ion Exchange Resins; D008676:Metanephrine; D004837:Epinephrine