Khandelwal, S., and N. Natu. “Ectopic Ovarian Pregnancy Following in Vitro Fertilization: Case Report”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 9, no. 5, Apr. 2020, pp. 2174-6, doi:10.18203/2320-1770.ijrcog20201829.