1. Institute of Epidemiology and Medical Biometry, ZIBMT; University of Ulm; Ulm Germany
2. German Centre for Diabetes Research (DZD); Munich Germany
3. Department of Paediatrics; Kinderkrankenhaus Amsterdamer Straße; Cologne Germany
4. Department of Paediatrics; Gemeinschaftskrankenhaus Herdecke; Herdecke Germany
5. Department of Paediatrics; University Hospital Jena; Jena Germany
6. Department of Paediatrics and Adolescent Medicine; University Medical Centre; Freiburg Germany
7. Department of Paediatrics; University of Bochum; Bochum Germany
8. Department of Paediatrics; Katholisches Kinderkrankenhaus Wilhelmstift; Hamburg Germany
9. Children's Hospital, Müritzklinikum Waren; Waren Germany
10. Department of Paediatric and Adolescent Medicine; Medical University of Vienna; Vienna Austria
11. Department of Paediatric Endocrinology and Diabetology; University Hospital Bonn; Bonn Germany
12. Department of Paediatrics; Centre Hospitalier Luxembourg; Luxembourg Luxembourg
13. Department of Paediatrics; University Hospital Brussels, UZB; Brussels Belgium