Shrestha, Sanjaya Kumar. “Correlation of QRS Duration With Intraventricular Mechanical Dyssynchrony on Tissue Doppler Imaging in Heart Failure”. Journal of Patan Academy of Health Sciences 5, no. 2 (December 30, 2018): 46–51. Accessed November 21, 2024. https://nepjol.info./index.php/JPAHS/article/view/23993.