title: Zinc contamination in a trace-element control serum.
mesh_terms: D006801:Humans; D011786:Quality Control; D013054:Spectrophotometry, Atomic / Q000379:methods; D014131:Trace Elements / Q000097:blood*; D015032:Zinc / Q000097:blood*
chemical_list: D014131:Trace Elements; D015032:Zinc