1. Department of Diagnostic and Interventional Radiology, Goethe University Frankfurt, Frankfurt am Main, Germany
2. Department of Radiology, University Hospitals Tübingen, Germany
3. Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein Campus Lübeck, Lübeck, Germany
4. Interventional and Diagnostic Radiology, University Hospital Aachen, Germany
5. Department of Radiology, University Hospital Cologne, Germany
6. Department of Radiology, Charité Medical Faculty Berlin, Germany