1. Institute for Diagnostic and Interventional Radiology, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
2. Institute of Diagnostic and Interventional Radiology, Pediatric Radiology and Neuroradiology, University Medical Center Rostock, Rostock, Germany
3. Institute for Interventional Radiology, University Hospital Schleswig-Holstein Campus Lübeck, Lübeck, Germany
4. Institute for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany
5. Interventional and diagnostic Radiology, University Hospital Aachen, Germany
6. Institute of Medical Epidemiology, Biometry and Informatics, Martin Luther University Halle Wittenberg, Halle, Germany
7. Diagnostic and Interventional Radiology, Universitätsklinikum Leipzig, Germany
8. University Institute of Radiology, Neuroradiology and Nuclear Medicine, Johannes Wesling Hospital Minden, Germany