Ahmed, I. (2022) “Comparison of Left Ventricular Ejection Fraction in Heart Failure Patients on Echocardiography, Cardiac Magnetic Resonance Imaging and Single Photon Emission Computed Tomography”, Pakistan Armed Forces Medical Journal, 72(SUPPL-3), pp. S461–66. doi:10.51253/pafmj.v72iSUPPL-3.9534.