1. Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
2. Department of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan
3. Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
4. Graduate Institute of Computer and Communication Engineering, National Taipei University of Technology, Taipei, Taiwan, Republic of China
5. Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
6. School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China
7. Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, Republic of China