1. Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan;
2. Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan;
3. Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan;
4. Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan;
5. Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan