S. Batool, J. Waris, M. U. Sajid, S. Nisar, I. Khan, and H. Mushtaq, “ROLE OF HEART RATE REDUCTION WITH IVABRADINE IN LEFT VENTRICULAR FAILURE: IVABRADINE AND HEART RATE REDUCTION IN LEFT VENTRICULAR FAILURE”, PAFMJ, vol. 70, no. 6, pp. 1839–42, Dec. 2020.