1. Department of Neurosurgery, Teikyo University Chiba Medical Center
2. Department of 3rd Internal Medicine, Teikyo University Chiba Medical Center
3. Department of Pathology, Teikyo University Chiba Medical Center
4. Department of Surgery, Atami Hospital of International University of Health and Welfare
5. Department of Nuclear Medicine, Chiba Cancer Center
6. Department of 2nd Pathology, Wakayama Medical University