1. Department of Nephrology and Rheumatology, University Medical Centre Göttingen, Germany.
2. Department of Neurology, University Medical Centre Göttingen, Germany.
3. Institute of Neuropathology, University Medical Centre Göttingen, Germany.
4. Department of Neurology, University Medical Centre Göttingen; Department of Neurology and Pain Treatment, Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, and Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany.
5. Department of Nephrology and Rheumatology, University Medical Center Göttingen, Germany. peter.korsten@med.uni-goettingen.de