Dokuz Eylul University Institute of Oncology, Dept. of Pediatric Oncology, Izmir, Turkey.
2.From the Department of Otorhinolaryngology, Hearing, Balance and Speech Division, Dokuz Eylul University Medical School, Izmir, Turkey; Dokuz Eylul Universitesi Tip Fakultesi KBB AD, Isitme-Konusma-Denge Unitesi
3.Dokuz Eylul University Medical School, Dept. of Pediatrics, Izmir, Turkey.
4.Dokuz Eylul University Faculty of Medicine Department of Otorhinolaryngology; Dokuz Eylul Tıp Fakültesi KBB ABD, işletme- Konuşma-Denge Ünitesi, İnciraltı-İzmir