1. The United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan
2. The Animal Medical Center of Gifu University, Gifu University, Gifu 501-1193, Japan
3. Watanabe Animal Hospital, Shizuoka 427-0101, Japan
4. Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan
5. Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University, Gifu 501-1193, Japan