Bhattacharya R, Raut R, Kumari B, Hojai DC. A rare case of heterotopic pregnancy: an avalanche of catastrophe. Int J Reprod Contracept Obstet Gynecol [Internet]. 2020 Oct. 27 [cited 2025 Oct. 4];9(11):4702-6. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/9148