1. Taipei Medical University, College of Medicine, Graduate Institute of Medical Sciences, Taipei, Taiwan
2. Taipei Medical University-Shuang Ho Hospital, Department of Neurosurgery, Taipei, Taiwan
3. Taipei Medical University, Biostatistics Center, Taipei, Taiwan
4. National Yang-Ming University, Department and Institute of Physiology, Taipei, Taiwan
5. Taipei Medical University, College of Medicine, School of Medicine, Department of Physiology, Taipei, Taiwan
6. Taipei Medical University-Shuang Ho Hospital, School of Medicine, Department of Neurology, Taipei, Taiwan
7. Taipei Medical University Hospital, Department of Neurosurgery, Taipei, Taiwan
8. Taipei Medical University-Wan Fang Hospital, Department of Neurosurgery, Taipei, Taiwan
9. Taipei Medical University, College of Medicine, School of Medicine, Taipei, Taiwan