... 99%. T4, T3, and rT3 cross-reacted with 3',5'-T2-binding sites on anti-3',5'-T2 antibody only to the extent of 0 ... .9 +/- 7.7 ng/ml in 25 patients with hepatic cirrhosis, and 14.3 +/- 5.3 ng/100 ml in 31 newborns' cord blood ... . Administration of dexamethasone (2 mg also associated with nearly parallel increases in serum 3',5'-T2 and rT3 and a decrease in serum ...