1. 1Zentralinstitut für Biomedizinische Technik (ZIBMT), Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
2. 2German Center for Diabetes Research (DZD), Neuherberg, Germany
3. 3Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
4. 4Department of Pediatrics, Kinderklinik München Schwabing, Technical University of Munich School of Medicine, Munich, Germany
5. 5Institute of Health Economics and Health Care Management, Helmholtz Zentrum München–German Research Center for Environmental Health, Neuherberg, Germany
6. 6Center of Child and Adolescent Medicine, Justus Liebig University, Giessen, Germany
7. 7Pediatric Practice of the Medical Center Arnsberg, Hochsauerland Clinic, Arnsberg, Germany
8. 8St. Hedwig Clinic for Pediatric and Adolescent Medicine, Regensburg University, Hospital of the Order of St. John of God, Regensburg, Germany
9. 9Department of Pediatrics, University Hospital Erlangen, Erlangen, Germany
10. 10Division of Endocrinology and Diabetes, Department of Pediatrics, University of Greifswald, Greifswald, Germany
11. 11Children's Hospital, Müritzklinikum Waren, Waren, Germany