1. Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
2. Department of Neurological Surgery, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan
3. School of Medicine, National Yang-Ming University, Taipei, Taiwan
4. Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital & National Yang-Ming University, Taipei, Taiwan
5. Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
6. Division of Pediatric Neurosurgery, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
7. College of Biological Science and Technology, National Chiao Tung Univeristy, Taiwan
8. Department of Medical Research and Education, Taipei Veterans General Hospital, Taiwan
9. Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan