M Terzic, M., & Petronijevic, A. (1993). Transferrin Concentrations in Amniotic Fluid and Blood During Gestation and Early Puerperium. Thai Journal of Obstetrics and Gynaecology, 5(2), 73–79. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257809