1. Division of Nephrology and Immunology; Uniklinik RWTH Aachen; Wuppertal Germany
2. Department of Trauma Surgery; Medizinisches Zentrum Städteregion Aachen GmbH; Wuppertal Germany
3. Department of Radiology; Justus-Liebig-University Giessen; Wuppertal Germany
4. Department of Diagnostic and Interventional Radiology; Uniklinik RWTH Aachen; Wuppertal Germany
5. Bayer Health Care; Wuppertal Germany