1. Department of Neurosurgery, Hamamatsu University School of Medicine , Shizuoka , Japan
2. Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences , Okayama , Japan
3. Department of Pediatrics, Okayama University Hospital , Okayama , Japan
4. Section of Translational Research, Hyogo Cancer Center , Akashi , Japan
5. Department of Head and Neck Medical Oncology, National Cancer Center Hospital East , Kashiwa, Chiba , Japan
6. Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
7. Department of Brain Disease Translational Research, Graduate School of Medicine, Juntendo University , Tokyo , Japan
8. Center for Comprehensive Genomic Medicine, Okayama University Hospital , Okayama , Japan