1. Department of Metabolic Diseases, University Hospital of Düsseldorf
2. Department of Radiology, Section on Experimental Radiology, University Hospital of Tübingen
3. Division of Endocrinology, Diabetes, Nephrology, Angiology, and Clinical Chemistry, Department of Internal Medicine, University Hospital of Tübingen
4. Department of Radiology, Diagnostic and Interventional Radiology, University Hospital of Tübingen