1. Division of Neonatology, Trabzon Kanuni Training and Research Hospital, Trabzon, Turkey
2. Division of Neonatology, Diyarbakir Gazi Yasargil Training and Research Hospital, Diyarbakır, Turkey
3. Division of Pediatric Endocrinology, Diyarbakir Gazi Yasargil Training and Research Hospital, Diyarbakır, Turkey
4. Department of Pediatrics, Division of Pediatric Endocrinology, Mardin Artuklu University Medical School, Mardin, Turkey