1. Gazi Yaşargil Research and Training Hospital Pediatric Endocrinology Diyarbakır Turkey
2. Hacettepe University Faculty of Medicine Department of Pediatric Endocrinology Ankara Turkey
3. Gazi Yaşargil Research and Training Hospital Neonatology Diyarbakır Turkey
4. Department of Pediatrics, Division of Endocrinology Sidra Medicine Doha Qatar