1. Ankara Bilkent City Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey

2. Gazi University Faculty of Medicine, Department of Pediatric Endocrinology, Ankara, Turkey

3. Gazi University Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, Laboratory Animals Breeding and Experimental Research Center, Ankara, Turkey

4. Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey

5. Gazi University Faculty of Medicine, Department of Medical Biochemistry, Ankara, Turkey