Nawaz, Haq, et al. “FREQUENCY OF ECHOCARDIOGRAPHIC COMPLICATIONS OF DILATED CARDIOMYOPATHY AT A TERTIARY CARE HOSPITAL”. Journal of Ayub Medical College Abbottabad, vol. 23, no. 3, Sept. 2011, pp. 51-55, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/2425.