Hameed, Waqas, Muhammad Shamaun Razi, Muhammad Alamgir Khan, Muhammad Mazhar Hussain, Sohail Aziz, Shahid Habib, and Muhammad Aslam. 2005. “ELECTROCARDIOGRAPHIC DIAGNOSIS OF LEFT VENTRICULAR HYPERTROPHY: COMPARISON WITH ECHOCARDIOGRAPHY”. Pakistan Journal of Physiology 1 (1-2). https://pjp.pps.org.pk/index.php/PJP/article/view/590.