1. Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
2. School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
4. Department of Neurology, Keelung Hospital, Ministry of Health and Welfare, Keelung, Taiwan
5. Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
6. Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
7. Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan