1. School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
2. Laboratory of Veterinary Hygiene, School of Veterinary Medicine, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
3. Research Center for Animal Life Science Nippon Veterinary and Life Science University Tokyo Japan
4. Faculty of Veterinary Technology Kasetsart University Bangkok Thailand
5. Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine Hokkaido University Sapporo Japan
6. Laboratory of Veterinary Pathology, School of Veterinary Medicine, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
7. Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan