1. Animal Medical Center, Tokyo University of Agriculture and Technology, 3-5-8 Sawai-cho, Fuchushi, Tokyo 183-8509, Japan
2. Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Koorimoto, Kagoshima 890-0065, Japan
3. Department of System Biology in Thromboregulation, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan