Measurement of t4, t3 and reverse t3 levels resin t3 uptake and free thyroxin: index in blood from the ultervillous space of the placenta in maternal peripheralblood and the umbelical artery and vein of normal parturients and their conceptuses - Sá, Marcos Felipe Silva de; Meirelles, R S; Iazigi, Nassim (Gynecologic and Obstetric Investigation, 1988)