the free thyroxine index ( ft4i ) , triiodothyronine ( t3 ) and thyroid stimulating hormone ( tsh ) in serum and the peak serum tsh ( trh test ) were measured in 18 patients with nontoxic uninodular goitre and 32 patients with nontoxic multinodular goitre before and 3 , 6 , 12 , 24 and 36 months after goitre resection .
C0041014
triiodothyronine
C0018021
goitre