1. ENT Department, Faculty of Medicine , University of Medicine and Pharmacy of Oradea , Oradea , Romania
2. Department of Otorhinolaryngology, Faculty of Medicine , Kırıkkale University , Kırıkkale , Turkey
3. Department of Communication Design and Management, Faculty of Communication Sciences , Anadolu University , Eskisehir , Turkey
4. Department of Otorhinolaryngology, Faculty of Medicine , Eskisehir Osmangazi University , Eskisehir , Turkey