1. Institute for Epidemiology and Medical Biometry ZIBMT, Ulm University Ulm Germany
2. German Centre for Diabetes Research (DZD) Munich‐Neuherberg Germany
3. Division of Endocrinology and Diabetology, Department of Medicine II, Medical Center – University of Freiburg, Faculty of Medicine University of Freiburg Freiburg im Breisgau Germany
4. Institute for Endocrinology and Diabetes University of Luebeck Luebeck Germany
5. Medical Clinic I Vinzentius‐Krankenhaus Landau Germany
6. Medical Clinic IV, Clinic for Endocrinology, Diabetology, Metabolism, and Nutrition Medicine Clinic Coburg Coburg Germany
7. Division of Endocrinology and Diabetes RWTH Aachen University Aachen Germany
8. Diabetespraxis Wosch Hanau Germany
9. Diabeteszentrum am Klinikum Dortmund Dortmund Germany
10. Department of Medicine, Division of Endocrinology and Diabetology Universitätsklinikum Erlangen, Friedrich Alexander University Erlangen‐Nürnberg Erlangen Germany