Aloubaide, Raad Aboud, et al. “Sensorineural Deafness Among Patients With Chronic Renal Failure in Al-Kindi Teaching Hospital”. AL-Kindy College Medical Journal, vol. 7, no. 2, Dec. 2011, pp. 137-41, https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/652.