1. Department of Diagnostic Pathology, Faculty of Medicine Kagawa University Kagawa Japan
2. Department of Diagnostic Pathology and Cytology Kuma Hospital Hyogo Japan
3. Department of Neurological Surgery, Faculty of Medicine Kagawa University Kagawa Japan
4. Department of Human Pathology Gunma University Graduate School of Medicine Gunma Japan
5. Department of Pathology Gunma University Hospital Gunma Japan