1. Gülhane Military Medical Academy; Department of Pediatric Endocrinology; Ankara Turkey
2. Gazi University Medicine School; Department of Pediatric Endocrinology; Ankara Turkey
3. Keçiören Education and Research Hospital; Department of Pediatric Endocrinology; Ankara Turkey
4. Kocaeli University Medicine School; Department of Pediatric Endocrinology; Kocaeli Turkey
5. Gülhane Military Medical Academy; Department of Biostatistics; Ankara Turkey
6. Gülhane Military Medical Academy; Department of Biochemistry; Ankara Turkey
7. Turkish Social Security Institute; Ankara Turkey
8. School of Women's and Children's Health UNSW Medicine; Sydney Australia