1 Division of Neonatology, Department of Pediatrics, Ankara University, Faculty of Medicine, Ankara, Turkey.
2 Division of Neonatology, Department of Pediatrics, İstanbul University, Cerrahpaşa Faculty of Medicine, İstanbul, Turkey.
3 Division of Neonatology, Department of Pediatrics, Dokuz Eylül University, Faculty of Medicine, İzmir, Turkey.
4 Division of Neonatology, Department of Pediatrics, Sağlık Bilimleri University, Faculty of Medicine, Dr. Sami Ulus Maternity and Children's Training and Research Hospital, Ankara, Turkey.
5 Division of Neonatology, Department of Pediatrics, Medeniyet University, Faculty of Medicine, İstanbul, Turkey.
6 Division of Neonatology, Department of Pediatrics, Marmara University, Faculty of Medicine, İstanbul, Turkey.
7 Division of Neonatology, Department of Pediatrics, Gazi University, Faculty of Medicine, Ankara, Turkey.