1. Clinic of Small Animal Medicine; Centre for Clinical Veterinary Medicine; Ludwig-Maximilians-Universitaet Muenchen; Veterinaerstrasse 13 Munich 80539 Germany
2. Section of Clinical & Comparative Neuropathology; Institute of Veterinary Pathology; Centre for Clinical Veterinary Medicine; Ludwig-Maximilians-Universitaet Muenchen; Veterinaerstrasse 13 Munich 80539 Germany