Patel, Nisi, Komal Patel, and Bipin R. Shah. “A Rare Case of Heterotopic Pregnancy: Case Report”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 5 (April 23, 2021): 2101–2103. Accessed October 14, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/10054.