1. Department of Oral and Maxillofacial Surgery Saitama Medical University Saitama Japan
2. Laboratory of Veterinary Pharmacology, School of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan
3. School of Veterinary Nursing and Technology Nippon Veterinary and Life Science University Tokyo Japan
4. Laboratory of Veterinary Biochemistry, School of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan