1. The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
2. Laboratory of Veterinary Pathology, Azabu University, Sagamihara, Kanagawa, Japan
3. Laboratory of Veterinary Pathology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
4. Neuro Vets Animal Neurology Clinic, Kyoto, Japan
5. Laboratory of Veterinary Surgery, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan