title: Lack of ferritin concentration at the decision level among commercial quality-control materials.
mesh_terms: D005293:Ferritins / Q000097:blood*; D006801:Humans; D000090463:Iron Deficiencies; D011786:Quality Control; D011933:Reagent Kits, Diagnostic
chemical_list: D011933:Reagent Kits, Diagnostic; D005293:Ferritins