1. Diyarbakir Selahaddin Eyyubi Public Hospital, Otolaryngology Clinic, Diyarbakir, Turkey;
2. Gumushane Public Hospital, Otolaryngology Clinic, Gumushane, Turkey;
3. Diyarbakir Gazi Yasargil, Education and Research Hospital, Otolaryngology Department, Diyarbakir, Turkey