1. Department of Otolaryngology; Head & Neck Surgery, Ministry of Health Diskapi Yildirim Beyazit Training and Research Hospital; Ankara Turkey
2. Department of Ophthalmology; Ministry of Health Diskapi Yildirim Beyazit Training and Research Hospital; Ankara Turkey
3. Department of Respiratory Medicine; Ministry of Health Diskapi Yildirim Beyazit Training and Research Hospital; Ankara Turkey
4. Department of Otolaryngology; Head & Neck Surgery, Faculty of Medicine, Yildirim Beyazit University; Ankara Turkey