1. Department of Neurobiology, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
2. Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
3. Department of Neurology, Union Hospital of Fujian Medical University, Fuzhou 350001, China
4. Department of Neurology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
5. Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
6. National Clinical Research Center for Geriatric Diseases, Beijing 100053, China