Mekha, M., and H. Patel. “Study Of Ventricular Function In Patients With Rheumatic Valvular Heart Disaese: Ventricular Function In Patients With Rheumatic Valvular Heart Disease”. National Journal of Integrated Research in Medicine, vol. 4, no. 1, Feb. 2013, pp. 22-28, http://nicpd.ac.in/ojs-/index.php/njirm/article/view/2122.