1. Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, P.R. China
2. Center of Alzheimer’s Disease, Beijing Institute for Brain Disorders, Beijing, P.R. China
3. Beijing Key Laboratory of Geriatric Cognitive Disorders, Beijing, P.R. China
4. Key Neurodegenerative Laboratory of Ministry of Education of the People’s Republic of China, Beijing, P.R. China