1. Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan;
2. Section of Neurology, Department of Internal Medicine, Far Eastern Memorial Hospital, Taipei, Taiwan;
3. Department of Neurology, Mackay Memorial Hospital, Taipei, Taiwan;
4. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan;
5. Section of Neurology, Department of Internal Medicine, Min-Sheng General Hospital, Taoyuan, Taiwan;
6. Department of Anatomy and Cell Biology, National Taiwan University College of Medicine, Taipei, Taiwan.