title: Analysis of mercury in urine: operation of an external quality assurance scheme.
authors: P J
authors: PJ
authors: Lewis
authors: A L
authors: AL
authors: Wright
mesh_terms: D006801:Humans; D007753:Laboratories / Q000592:standards*; D008628:Mercury / Q000652:urine*; D008722:Methods; D011786:Quality Control; D012016:Reference Values
chemical_list: D008628:Mercury