1. Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School , Boston, MA 02115 , USA
2. Division of Endocrinology, Diabetes, and Metabolism, Nemours Children's Health , Jacksonville, FL 32207 , USA
3. Unidade de Endocrinologia do Desenvolvimento, Laboratório de Hormônios e Genética Molecular/LIM42, Hospital das Clínicas, Disciplina de Endocrinologia, Faculdade de Medicina da Universidade de São Paulo , São Paulo 01246-903 , Brazil
4. Department of Pediatrics and Pediatric Endocrinology Unit, Trakya University Faculty of Medicine , Edirne 22030 , Turkey
5. Division of Endocrinology, Boston Children's Hospital , Boston, MA 02115 , USA
6. Pediatric Endocrinology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh , Pittsburgh, PA 15224 , USA