Kaul, U, K Subramanyan, J C Mohan, and M L Bhatia. “Acute Effects of Anti-Anginal Drugs on Cardiac Pacing Threshold”. Pakistan Heart Journal 19, no. 2 (September 20, 2012). Accessed November 24, 2024. https://pakheartjournal1.pcs.org.pk/index.php/pk/article/view/361.