1. Diabetes Center for Children and Adolescents; Kinder- und Jugendkrankenhaus AUF DER BULT; Hannover Germany
2. Institute for Epidemiology and Medical Biometry, ZIBMT; University of Ulm; Ulm Germany
3. German Center for Diabetes Research (DZD); Munich Germany
4. Catholic Children’s Hospital Wilhelmstift; Hamburg Germany
5. Department of Pediatric and Adolescent Medicine; Medical University of Vienna; Vienna Austria
6. Sana Klinikum Lichtenberg; Berlin Germany
7. DRK-Kinderklinik Westend; Berlin Germany
8. Klinik für Kinder- und Jugendmedizin; Klinikum Hanau; Hanau Germany
9. Diabetes Zentrum Mergentheim; Bad Mergentheim Germany