1. AUF DER BULT Diabetes Center for Children and Adolescents, Hannover, Germany.
2. Institute for Epidemiology and Medical Biometry,ZIBMT,Ulm University, Ulm, Germany.
3. German Center for Diabetes Research (DZD),Neuherberg, Germany.
4. Catholic Children's Hospital Wilhelmstift,Hamburg, Germany.
5. Department of Pediatric and Adolescent Medicine,Medical University of Vienna, Vienna, Austria.
6. Diabetes Clinic Bad Mergentheim,Bad Mergentheim,Germany.
7. Landesklinikum Korneuburg Stockerau,Korneuburg Stockerau,Austria.
8. Sana Klinikum Lichtenberg—Oskar-Ziethen-Krankenhaus,Berlin,Germany.
9. Klinik für Stoffwechsel und Diabetes,Karlsburg,Germany.
10. Kinderklinik Amsterdamerstrasse, Köln, Germany.