F. Tuyyab, “EFFICACY OF IVABRADINE, METOPROLOL ALONE VS IVABRADINE PLUS METOPROLOL (COMBINATION) FOR HEART RATE REDUCTION AND HEART RATE VARIABILITY DURING COMPUTED TOMOGRAPHY CORONARY ANGIOGRAPHY: A RANDOMIZED CONTROLLED TRIAL”, Pak Armed Forces Med J, vol. 68, no. Suppl-1, pp. S1–4, Mar. 2018, Accessed: Jan. 15, 2025. [Online]. Available: https://pafmj.org/PAFMJ/article/view/3256