Soundararajan, P., P. Muthuramu, M. Veerapandi, and R. Mariyappan. “Serum Beta Human Chorionic Gonadotropin and Lipid Profile in Early Second Trimester (14-20 Weeks) Is a Predictor of Pregnancy-Induced Hypertension”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 5, no. 9, Feb. 2017, pp. 3011-6, doi:10.18203/2320-1770.ijrcog20162975.