Βιβλιογραφική Τεκμηρίωση:
Influence of age and sex on the concentration of free thyroxin in serum and on the free thyroxin: total thyroxin ratio.Wilke TJ.Clin Chem. 1983 Jul;29(7):1428-30.
Administration of thyroxin once a week.Sekadde CB, Slaunwhite WR Jr, Aceto T Jr, Murray K.J Clin Endocrinol Metab. 1974 Oct;39(4):759-64.
Enzymatic mechanisms of thyroxine.GEMMILL CL.J Clin Endocrinol Metab. 1952 Oct;12(10):1300-5.