title: Sensitive thyrotropin measurements: utility and futility.
authors.forename: G S
authors.initials: GS
authors.lastname: Rai
mesh_terms: D000368:Aged; D006801:Humans; D007037:Hypothyroidism / Q000097:blood*; D013960:Thyroid Function Tests; D013972:Thyrotropin / Q000097:blood*
chemical_list: D013972:Thyrotropin