the development of specific radioimmunoassays has allowed measurements of 3,3',5'-triiodothyronine ( reverse t3 ) , 3,3'-diiodothyronine ( 3,3't2 ) , and thyroglobulin to be performed in serum and in various biological fluids both in normal and in altered states of thyroidal economy .
C0040123
thyroglobulin
C0040132
thyroidal