Kharb, Simmi, R. Tiwari, and S. Nanda. “Relationship Between Gestational Age and Endoglin Levels in Maternal and Cord Blood”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 5, no. 3 (February 23, 2017): 770–774. Accessed October 13, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/765.