1. Division of Endocrinology , Children’s Mercy Hospital , Kansas City , MO , USA
2. Division of Adolescent Medicine , Children’s Mercy Hospital , Kansas City , MO , USA
3. University of Missouri-Kansas City School of Medicine , Kansas City , MO , USA
4. University of Kansas Medical Center , Kansas City , KS , USA
5. Department of Pediatrics, Baylor College of Medicine , Texas Children’s Hospital , Houston , TX , USA
6. Division of Health Services and Outcomes Research , Children’s Mercy Hospital , Kansas City , MO , USA
7. Division of Nutritional Sciences , Cornell University , Ithaca , NY , USA