Kanagasabapathy, A SKarunanidhi, AKoshy, T S1977-09-012009-05-271977-09-012009-05-271977-09-01Kanagasabapathy AS, Karunanidhi A, Koshy TS. A comparison of thyopac-3 and T3-resin uptake for the calculation of free thyroxine index for assessing thyroid status. Indian Journal of Medical Research. 1977 Sep; 66(3): 479-86http://imsear.searo.who.int/handle/123456789/24510engFemaleHumansPregnancyThyroid Diseases --bloodThyroid Function Tests --methodsThyroxine --bloodTriiodothyronine --diagnostic useComparative Study