1. Department of Neurology, Xiangya Hospital Central South University Changsha China
2. Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha China
3. Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences Central South University Changsha China
4. Department of Geriatrics, Xiangya Hospital Central South University Changsha China
5. Department of Nuclear Medicine, Xiangya Hospital Central South University Changsha China
6. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha China