1. Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
2. National Yang-Ming University, Taipei, Taiwan
3. Department of Neurology, Mackay Memorial Hospital, Taipei, Taiwan
4. Department of Neurology, Chang-Gung Memorial Hospital, Linkou, Taiwan
5. Chang-Gung University College of Medicine, Linkou, Taiwan
6. Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan