1. Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan
2. Laboratory of Veterinary Anatomy, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
3. Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Qalyubia, Egypt
4. Japan Racing Association (JRA) and Miyazaki Yearling Training Farm, Miyazaki, Japan
5. Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan