Jha, Rani, Ankur Shah, and Shailesh Kumar Jha. “Ultrasonography Findings in First Trimester Vaginal Bleeding”. Nepal Journal of Obstetrics and Gynaecology 15, no. 2 (November 15, 2020). Accessed April 25, 2024. https://www.nepjol.info/index.php/NJOG/article/view/32919.