Bhattacharya, R., Raut, R., Kumari, B., & Hojai, D. C. (2020). A rare case of heterotopic pregnancy: an avalanche of catastrophe. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 9(11), 4702–4706. https://doi.org/10.18203/2320-1770.ijrcog20204837