serum levels of d-thyroxine ( d-t4 ) and l-thyroxine ( l-t4 ) were determined by use of a newly developed method for the stereospecific determination of these isomers in 8 patients with diffuse non-toxic goiter and 2 hypothyroid patients following administration of increasing doses of d-thyroxine .
C0020676
hypothyroid
C0040165
thyroxine