1. Laboratory of Molecular Target Therapy for Cancer, Graduate School for Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
2. Center for Medical Education, Sapporo Medical University, Sapporo, Japan
3. Department of Neurosurgery, Toyama Prefectural Central Hospital, Toyama, Japan
4. Department of Neurological Surgery, Wakayama Medical University School of Medicine, Wakayama, Japan
5. Department of Neurosurgery, Graduate School of Medical Sciences, Chiba University, Chiba, Japan
6. Department of Neurosurgery, Graduate School of Medical Sciences, Yamaguchi University, Ube, Yamaguchi, Japan
7. Department of Pathology, Toyama Prefectural Central Hospital, Toyama, Japan
8. Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan