1. Institute of Pathology, RWTH University Aachen; Aachen Germany
2. Division of Nephrology, RWTH University Aachen; Aachen Germany
3. Electron Microscopic Facility, Medical Faculty RWTH; Aachen Germany
4. Institute of Molecular Biomedicine, Comenius University; Bratislava Slovakia
5. Department of Radiology; RWTH University Aachen; Aachen Germany
6. Philips Technologie GmbH Innovative Technologies; Research Laboratories; Aachen Germany
7. Philips Healthcare; Hamburg Germany