Gp Captain J C Sharma, Brig Praveen kumar, and Rupa Talukdar. “Is Heterotopic Pregnancy Uncommon?”. Asian Pacific Journal of Health Sciences 1, no. 4 (December 30, 2014): 458–460. Accessed April 30, 2025. https://apjhs.com/index.php/apjhs/article/view/829.