Total and free thyroid hormone concentrations in patients receiving replacement treatment with thyroxine.
D000368:Aged; D006801:Humans; D013960:Thyroid Function Tests; D013963:Thyroid Hormones / Q000097:blood*; D013974:Thyroxine / Q000627:therapeutic use*
D013963:Thyroid Hormones; D013974:Thyroxine