1. Laboratory of Large Animal Clinical Sciences, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
2. Laboratory of Veterinary Physiology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
3. Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
4. North Veterinary Clinical Center, Chiba Prefectural Federated Agricultural Mutual Aid Association, Chiba, Japan