Akhter, N., Rahman, F., Salman, M., Anam, K., Begum, N., Naher, S., Fatema, N., Hasan, Z., Rashid, M., & Benerjee, S. (2011). Valvular heart disease in pregnancy: maternal and fetal outcome. Mymensingh Medical Journal, 20(3), 436–440. Retrieved from https://www.banglajol.info/index.php/MMJ/article/view/8326