1. Division of Endocrinology and Diabetes, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
2. Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
3. The George Washington University Biostatistics Center, 6110 Executive Boulevard, Suite 750, Rockville, MD 20852, USA, Office: +301-881-9260, Fax: +301-881-3767
4. University Hospitals Cleveland Medical Center, Cleveland, OH, USA
5. Pediatric, Adolescent and Young Adult Section, Joslin Diabetes Center, Boston, MA, USA
6. State University of New York Upstate Medical University, Syracuse, NY, USA
7. University of Texas Health Science Center, San Antonio, TX, USA
8. Diabetes and Obesity Program, Children’s Hospital Los Angeles, Los Angeles, CA, USA