1. Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital Würzburg, University of Würzburg, Würzburg, Germany
2. Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, University of Würzburg, Würzburg, Germany
3. Institute of Metabolism and System Research, University of Birmingham, Birmingham, United Kingdom
4. Endocrinology in Charlottenburg, Berlin, Germany
5. Department of Internal Medicine IV, Klinikum der Universität München, Munich, Germany
6. Department of Endocrinology, Diabetology and Clinical Nutrition, Universitätsspital Zürich, Zurich, Switzerland
7. Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany