Hossain, M. B., M. T. Chowdhury, M. Z. Islam, R. Debnath, S. Banerjee, and M. S. Bari. “Relationship Between QRS Duration on ECG and LV Systolic Function by Echocardiography in Patients With STEMI”. University Heart Journal, Vol. 15, no. 2, Aug. 2019, pp. 54-59, doi:10.3329/uhj.v15i2.42647.