1. Department of Speech and Language Therapy, Ankara Yildirim Beyazit University, Ankara, Turkey
2. Department of Western Languages and Literatures, Ankara Haci Bayram Veli University, Ankara, Turkey
3. Department of Audiology, Gazi University Hospital, Ankara, Turkey
4. Department of Otorhinolaryngology and Head-Neck Surgery, Gazi University, Ankara, Turkey