1 Department of Pediatric Endocrinology and Diabetes, Koç University Hospital, İstanbul, Turkey; Division of Pediatric Endocrinology and Diabetes, Koç University Faculty of Medicine, İstanbul Turkey.
2 Department of Pediatric Rheumatology, Koç University Hospital, İstanbul, Turkey.
3 Department of Pediatric Endocrinology and Diabetes, Koç University Hospital, İstanbul, Turkey.