Discordant inter-kit results in immunoradiometry of serum thyrotropin.
D000368:Aged; D005260:Female; D006801:Humans; D011863:Radioimmunoassay; D011933:Reagent Kits, Diagnostic; D013963:Thyroid Hormones / Q000097:blood; D013972:Thyrotropin / Q000097:blood*
D011933:Reagent Kits, Diagnostic; D013963:Thyroid Hormones; D013972:Thyrotropin