Sanjani,F Akbar, , Haryuna,T Hajar, , Farhat,F , , Nasution,S , , Harahap,J , , Lubis,Y M, , Asroel,H Agustaf, and Khalid,K . "Correlation of Indoxyl Sulfate to Hearing Impairment in Chronic Kidney Disease Patients", Iranian Journal of Otorhinolaryngology, 37, 4, 2025, 197-204. doi: 10.22038/ijorl.2025.77733.3633