1. Department of Neurology; School of Medicine; National Yang-Ming University, Taipei; Taiwan
2. Department of Neurology; Taipei Veterans General Hospital; Taipei Taiwan
3. Institute of Brain Science; School of Medicine; National Yang-Ming University; Taipei Taiwan
4. Brain Research Center; National Yang-Ming University; Taipei Taiwan
5. Institute of Neuroscience; National Yang-Ming University; Taipei Taiwan
6. Aging and Health Research Center; National Yang Ming University; Taipei Taiwan
7. Center for Geriatrics and Gerontology; Taipei Veterans General Hospital; Taipei Taiwan
8. Department of Biomedical Imaging and Radiological Sciences; National Yang-Ming University; Taipei Taiwan
9. Department of Family Medicine; Taipei Veterans General Hospital Yuanshan Branch; Yi-Lan Taiwan