title: Comparison of eleven commercially available kits for the radioimmunoassay of serum thyroxine.
mesh_terms: D011863:Radioimmunoassay; D011933:Reagent Kits, Diagnostic / Q000592:standards*; D013223:Statistics as Topic; D013974:Thyroxine / Q000097:blood*; D013997:Time Factors
chemical_list: D011933:Reagent Kits, Diagnostic; D013974:Thyroxine