1. Department of Neonatology, SBU Ankara City Hospital, Ankara, Turkey
2. Department of Pathology, Ankara Dişkapi Yildirim Beyzat Training and Research Hospital, Ankara, Turkey
3. Department of Medical Biochemistry, Dışkapı Yıldırım Beyazıt Training and Research Hospital, University of Health Sciences, Ankara, Turkey
4. Department of Otorhinolaryngology (Ear-Nose-Throat), Ankara Dişkapi Yildirim Beyzat Training and Research Hospital, Ankara, Turkey