Sultana, Shamima, Shelina Begum, and Sultana Ferdousi. 2016. “Effect of Losartan and Atenolol on Heart Rate Variability in Newly Diagnosed Essential Hypertensive Patient”. Bangabandhu Sheikh Mujib Medical University Journal 6 (2):161-67. https://doi.org/10.3329/bsmmuj.v6i2.29135.