1. Centers of Endocrinology and Metabolism, Bamberg and Erlangen Bamberg Germany
2. Division of Endocrinology and Diabetes, Department of Medicine I Friedrich‐Alexander‐University Erlangen‐Nuremberg Erlangen Germany
3. Endocrine Research, Medizinische Klinik und Poliklinik IV Ludwig‐Maximilians‐Universität Munich Germany
4. Klinik für Endokrinologie, Diabetologie und Klinische Ernährung UniversitätsSpital Zurich Zurich Switzerland
5. Division of Endocrinology and Metabolism, Department of Internal Medicine Goethe‐University Hospital Frankfurt am Main Germany
6. Endocrinology in Charlottenburg Berlin Germany