Marwah, Sheeba, Kumari Usha Rani, and Archana Mishra. “An Audit of Extra-Uterine Pregnancy in a Tertiary Care Facility in Northern India”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6, no. 11 (October 28, 2017): 5025–5032. Accessed October 2, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/3643.