1. Department of General Pediatrics, Neonatology and Pediatric Cardiology University Children's Hospital, Medical Faculty Duesseldorf Germany
2. Institute for Biometrics and Epidemiology German Diabetes Center Leibniz Center at Heinrich‐Heine University Duesseldorf Duesseldorf Germany
3. German Center for Diabetes Research (DZD)Munich‐Neuherberg Germany
4. Division of Endocrinology and Diabetology Medical Faculty, Heinrich Heine University Duesseldorf Duesseldorf Germany
5. Institute for Clinical Diabetology German Diabetes Center Leibniz Center at Heinrich Heine University Duesseldorf Duesseldorf Germany
6. Institute of Epidemiology and Medical Biometry ZIBMT, University of Ulm Ulm Germany
7. Department of Pediatric Endocrinology, Diabetes and Nutrition Medicine Vestische Hospital for Children and Adolescents Datteln University of Witten/Herdecke Datteln Germany