1. Faculty of Medicine, Neurology Department, Kırıkkale University, Kırıkkale, Turkey
2. Faculty of Medicine, ENT Department, Kırıkkale University, Kırıkkale, Turkey
3. Faculty of Medicine, Radiology Department, Kırıkkale University, Kırıkkale, Turkey
4. Faculty of Science and Literature, Statistics Department, Kırıkkale University, Kırıkkale, Turkey