Das, Dipu, Sandip Kanungo, Shahina Akhter, and Natia Rahnuma. “Sonological Evaluation of Ectopic Pregnancy-an Analysis of 50 Cases”. Medicine Today 34, no. 1 (April 24, 2022): 75–78. Accessed September 28, 2022. https://www.banglajol.info/index.php/MEDTODAY/article/view/58682.