Ceyda Akin Ocalan, F., R. Ocalan, Z. Korkmaz Disli, and T. Kilinc. “Sudden Hearing Loss After Spinal Anesthesia”. Annals of Medical Research, vol. 21, no. 2, May 2021, pp. 0168-9, http://www.annalsmedres.org/index.php/aomr/article/view/1969.