1. Department of Pathology University of Veterinary Medicine Hannover Hannover Germany
2. Center for Systems Neuroscience Hannover Germany
3. Institute of Veterinary Pathology Leipzig University Leipzig Germany
4. Institute of Zoology University of Veterinary Medicine Hannover Hannover Germany
5. Institute of Biometry, Epidemiology, and Information Processing University of Veterinary Medicine Hannover Hannover Germany
6. Institute for Neuroimmunology and Multiple Sclerosis Research University Medical Center Göttingen Göttingen Germany