Zakai, Saad Bader, Salman -Ur-Rehman Khan, Fazle Rabbi, and Habiba Tasneem. 2010. “EFFECTS OF MITRAL VALVE REPLACEMENT WITH AND WITHOUT CHORDAL PRESERVATION ON CARDIAC FUNCTION: EARLY AND MID-TERM RESULTS”. Journal of Ayub Medical College Abbottabad 22 (1):91-96. https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/3094.