Chaudhary, G. M. D., & Akhtar, A. H. (2012). Estimation of Left Ventricular Ejection Fraction From 12 Lead E.C.G – A Simple aid to Prediction of Prognosis in Myocardial Infarction. Pakistan Heart Journal, 17(2). https://doi.org/10.47144/phj.v17i2.413