1. Department of Neurology and Cerebrovascular Medicine, Saitama Medical University International Medical Center, Japan
2. Department of Neuro-Oncology, Saitama Medical University International Medical Center, Japan
3. Department of Pathology, Saitama Medical University, Japan
4. Department of Nuclear Medicine, Saitama Medical University International Medical Center, Japan
5. Department of Diagnostic Radiology, Saitama Medical University International Medical Center, Japan