1. Institute for Epidemiology and Medical Biometry, ZIBMT, Ulm University, Ulm, Germany
2. German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
3. Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
4. Division of Paediatric Endocrinology and Diabetology, Centre of Child and Adolescent Medicine, Justus Liebig University, Giessen, Germany
5. University Children’s Hospital Tübingen, Tübingen, Germany
6. Diabetes Centre for Children and Adolescents, Kinder- und Jugendkrankenhaus Auf der Bult, Hannover, Germany
7. Department of Paediatrics, University Hospital Erlangen, Erlangen, Germany
8. Department of Paediatrics, Kinderkrankhenhaus Amsterdamer Straße, Cologne, Germany
9. Department of Paediatrics and Adolescent Medicine, University Hospital RWTH Aachen, Aachen, Germany
10. Hospital for Children and Adolescents, University of Leipzig, Leipzig, Germany