Asad Khan, Farhat Shireen, Auqib Ghulam Shah, Imran Mehboob Baig, Muhammad Abdul Mateen, Muhammad Shahid. “Comparison of Various Techniques for Left Ventricular Ejection Fraction”. Pakistan Journal of Medical & Health Sciences 16, no. 07 (September 22, 2022): 817. Accessed April 23, 2026. https://mail.pjmhsonline.com/pjmhs/article/view/2412.