1. Department of Neurology, Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing People's Republic of China
2. Department of Clinical Epidemiology, Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing People's Republic of China
3. Department of Neurology Huashan HospitalFudan University Shanghai People's Republic of China
4. Department of Neurology The First Affiliated Hospital of Xi'an Jiaotong University Xi'an People's Republic of China
5. Department of Psychiatry The First Hospital, Huaxi Medical College Chengdu People's Republic of China
6. Department of Neurology Beijing Sixth Hospital Beijing People's Republic of China
7. Department of Epidemiology and Biostatistics, Institute of Basic Medicine Sciences Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College Beijing People's Republic of China
8. Cleveland Clinic Lou Ruvo Center for Brain Health Las Vegas NV USA