1. Department of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy
2. Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
3. Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
4. Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001 Bern, Switzerland
5. Genefast, 47122 Forlì, Italy
6. Section of Clinical & Comparative Neuropathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-Universitaet-Muenchen, 80539 Munich, Germany
7. Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece