1. Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
2. Division of Pediatric Neurosurgery, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
3. Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
4. School of Medicine, National Yang-Ming University, Taipei, Taiwan
5. Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan
6. Department of Neurological Surgery, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan
7. Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan