1. Institute for Endocrinology and Diabetes University of Lübeck Lübeck Germany
2. German Centre for Diabetes Research Neuherberg Germany
3. Department of Internal Medicine 1 Endocrinology and Diabetes, University of Lübeck Lübeck Germany
4. Institute of Epidemiology and Medical Biometry ZIBMT, University of Ulm Ulm Germany
5. Specialized Diabetes Practice Rosenheim Germany
6. Department of Diabetes, Endocrinology, Clinical Nutrition and Metabolism, Inselspital Bern University Hospital, University of Bern Bern Switzerland
7. Department of Endocrinology and Diabetology Medical Faculty and University Hospital Düsseldorf, Heinrich‐Heine‐University Düsseldorf Düsseldorf Germany
8. Institute for Clinical Diabetology, German Diabetes Centre Leibniz Institute for Diabetes Research at Heinrich‐Heine University Düsseldorf Germany
9. Medical Clinic I, Vinzentius‐Krankenhaus Landau Germany
10. Division of Endocrinology and Diabetology, Department of Medicine II Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg Freiburg Germany