1Pediatric Endocrinology and Metabolism, Texas Children's Hospital Baylor College of Medicine Houston Texas
2Jaeb Center for Health Research, Tampa, Florida
3German Center for Diabetes Research (DZD), Munich, Germany
4Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
5Department of Pediatrics, Stanford University School of Medicine, Stanford, California
6Pediatric Endocrinology and Diabetes Children's Mercy Hospital, University of Missouri-Kansas City School of Medicine Kansas City Missouri
7University Children's Hospital at Bochum University Bochum Germany
8Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut
9Department of Pediatrics, Medical University of Graz, Graz, Austria