Singh, Shakun, Swati Gupta, Rachna Chaudhary, and Vandana Dhama. “The Role of Serum Beta-Human Chorionic Gonadotropin As a Predictor for Pregnancy Induced Hypertension in 12-20 Weeks of Pregnancy”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 12, no. 4 (March 28, 2023): 970–973. Accessed April 25, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/12699.