1. Department of Neurology, Xiangya Hospital Central South University Changsha China
2. Department of Neurosurgery, Xiangya Hospital Central South University Changsha China
3. Department of Radiology, Xiangya Hospital Central South University Changsha China
4. Department of Nuclear Medicine, Xiangya Hospital Central South University Changsha China
5. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha China
6. Department of Neurology, Xiangya Hospital Central South University (Jiangxi Branch) Nanchang China