Verma, Pooja, Kavita N. Singh, and Vineeta Ghanghoriya. “To Study Analyze Maternal Serum Alpha-Fetoprotein As a Biomarker of Placental Adherence in Low Lying Placenta”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 5, no. 6 (January 5, 2017): 1959–1963. Accessed December 4, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/1260.