1. Department of Pediatric Endocrinology; Faculty of Medicine; Erciyes University; Kayseri Turkey
2. Department of Biochemistry; Faculty of Medicine; Erciyes University; Kayseri Turkey
3. Department of Pediatrics; Faculty of Medicine; Erciyes University; Kayseri Turkey
4. Department of Biostatistics; Faculty of Medicine; Erciyes University; Kayseri Turkey