we evaluated an immunoradiometric assay for serum tsh ( irma-tsh ) and compared it with established indices of thyroid function in 208 patients with either frank thyroid disease , conditions of abnormal thyroxine protein binding , or conditions which are known to produce discordant thyroid results , viz . pregnancy or estrogen treatment and nonthyroidal illness ( nti ) .
C0032961
pregnancy
C0014939
estrogen