1. Department of Pathology and Applied Neurobiology Kyoto Prefectural University of Medicine Kyoto Japan
2. Department of Radiology Kyoto Prefectural University of Medicine Kyoto Japan
3. Department of Neurosurgery Kyoto Prefectural University of Medicine Kyoto Japan
4. Department of Pathology Public Tomioka General Hospital Gunma Japan
5. Department of Anatomic Pathology Kyoto Prefectural University of Medicine Kyoto Japan