1. Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University
2. Division of Veterinary Internal Medicine, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University
3. Division of Veterinary Pathology, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University
4. MEDICAL CENTER NISHIDA ANIMAL HOSPITAL
5. Department of Pathology, Tokai University School of Medicine
6. Department of Neurosurgery, Nippon Medical School