1. Selcuk University Faculty of Medicine, Department of Otorhinolaryngology, Konya, Turkey
2. Selcuk University Faculty of Medicine, Department of Otorhinolaryngology, Subdepartment of Audiometry, Konya, Turkey
3. Cleveland Clinic Main Hospital, Anesthesiology Institute, Outcomes Research Consortium, Cleveland, Ohio, USA
4. Selcuk University Faculty of Medicine, Department of Anesthesiology and Reanimation, Konya, Turkey