1. Division of Nephrology and Immunology; University Hospital of the Aachen University of Technology (RWTH); Aachen Germany
2. Department of Pathology; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
3. Division of Pathology; University Hospital of the Aachen University of Technology (RWTH); Aachen Germany
4. Institute of Molecular Biomedicine; Comenius University; Bratislava Slovakia
5. Department of Nephrology; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
6. Electron Microscopic Facility; Medical Faculty RWTH; Aachen Germany
7. Department of Cancer Genetics; Roswell Park Cancer Institute; Buffalo USA