Pichai, E., J., E. R. and Sandanapitchai, V. (2016) “Efficacy and safety of ivabradine as an add-on to atenolol in patients with chronic stable ischemic heart disease”, International Journal of Basic & Clinical Pharmacology, 5(6), pp. 2546–2551. doi: 10.18203/2319-2003.ijbcp20164121.