著者所属:Department of Clinical Pathology, School of Veterinary Medicine, Nippon Veterinary and Animal Science University Department of Clinical Pathology, School of Veterinary Medicine, Nippon Veterinary and Animal Science University Department of Clinical Pathology, School of Veterinary Medicine, Nippon Veterinary and Animal Science University Department of Clinical Pathology, School of Veterinary Medicine, Nippon Veterinary and Animal Science University