1. Department of Neurosurgery Ehime University School of Medicine Toon Japan
2. Department of Neurosurgery Washoukai Sadamoto Hospital Matsuyama Japan
3. Department of Molecular and Cellular Physiology Ehime University School of Medicine Toon Japan
4. Department of Biomedical Research and Innovation Institute for Clinical Research National Hospital Organization Osaka National Hospital Osaka Japan
5. Department of Neurosurgery National Hospital Organization Osaka National Hospital Osaka Japan
6. Department of Neurosurgery Ehime Prefectural Central Hospital Matsuyama Japan
7. Division of Diagnostic Pathology Ehime University Hospital Toon Japan