Nasri, Hamid, and Azar Baradaran. 2004. “Close Association Between Parathyroid Hormone and Left Ventricular Function and Structure in End-Stage Renal Failure Patients under Maintenance Hemodialysis”. Journal of Ayub Medical College Abbottabad 16 (2). https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/4042.