Abass, F., Hussain, C., Faheem, M., Ahmad, I., Ahmad, J., Qureshi, S., Irfan, M., & Hafizullah, M. (2011). ELECTROCARDIOGRAPHIC ABNORMALITIES IN A CLINICALLY NORMAL POPULATION. Journal of Postgraduate Medical Institute, 25(2). Retrieved from https://jpmi.org.pk/index.php/jpmi/article/view/93