1. Department of Neurology/Neurosurgery; Centre for Small Animal Studies, Animal Health Trust; Newmarket Suffolk UK
2. Neurology/Neurosurgery Service; Willows Veterinary Centre and Referral Services; Solihull UK
3. Diagnostic Imaging Service, Centre for Small Animal Studies, Animal Health Trust; Newmarket UK
4. Diagnostic Imaging Section; College of Veterinary Medicine, Cornell University; Ithaca USA
5. One Health Institute, School of Veterinary Medicine, University of California; Davis USA