1. Charité - University Medicine Berlin
2. Kinderkrankenhaus auf der Bult
3. German Center for Diabetes Research
4. University Hospital of Schleswig Holstein, Campus Lübeck
5. Catholic Children’s Hospital Wilhelmstift
6. Oberschwabenklinik, Hospital St. Elisabeth, Department for Pediatrics
7. Diabetological Practice, Bürstadt
8. University Hospital of Schleswig Holstein, Campus Kiel
9. Kinderkrankenhaus Amsterdamerstrasse, Cologne
10. Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm