Sabha, Madieha, and Khushbu Bashir. “Fertility, Conception and Complications in Elderly Primigravidas a Comparative Study: Observational Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 12, no. 7 (June 28, 2023): 2119–2122. Accessed November 2, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/13291.