1. Acibadem Mehmet Ali Aydinlar University, Department of Pediatrics, Division of Neonatology, Istanbul, Turkey
2. Gazi University, Department of Pediatrics, Division of Neonatology, Ankara, Turkey
3. Gazi University, Department of Otorhinolaryngology, Head & Neck Surgery, Audiology Subdivision, Ankara, Turkey
4. Gazi University, Department of Electrical and Electronics Engineering, Ankara, Turkey