1. Cooperative Major in Advanced Health Science, Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Saiwai-cho, Fuchu, Tokyo 183–8509, Japan
2. Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Tokyo University of Agriculture and Technology, Saiwai-cho, Fuchu, Tokyo 183–8509, Japan
3. Laboratory of Veterinary Molecular Pathology and Therapeutics, Division of Animal Life Science, Tokyo University of Agriculture and Technology, Saiwai-cho, Fuchu, Tokyo 183–8509, Japan