in 28 patients with graves ' disease showing a wide range of thyroid function between the extremes of hypothyroidism and hyperthyroidism , the following parameters of peripheral thyroid function were measured : serum thyroxine concentration , serum-free thyroxine concentration , serum triiodothyronine concentration , and serum-free triiodothyronine concentration .
C0020676
hypothyroidism
C0040165
thyroxine