1. Electron Microscopy Unit, Department of Anatomy, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
2. Department of Sports and Health Sciences, Faculty of Science and Arts Rajamangala University of Technology Isan Nakhon Ratchasima Thailand
3. Department of Anatomy, School of Medicine Kitasato University Sagamihara Japan
4. Department of Anatomy, School of Medicine Hokkaido University Sapporo Japan
5. Department of Anatomy, Graduate School of Medicine Tohoku University Sendai Japan