1. Clinical College of Neurology, Neurosurgery and Neurorehabilitation Tianjin Medical University Tianjin China
2. Department of Neurology Tianjin Huanhu Hospital Tianjin China
3. Department of Neurology Beijing Tiantan Hospital Capital Medical University China National Clinical Research Center for Neurological Diseases Beijing China
4. Department of Neurology Beijing Friendship Hospital Capital Medical University Beijing China
5. Department of Neurology Fuxing Hospital Capital Medical University Beijing China
6. School of Nursing Tianjin Medical University Tianjin China
7. Department of Neurology Tianjin Key Laboratory of Cerebrovascular and of Neurodegenerative Diseases Tianjin Dementia Institute Tianjin Huanhu Hospital Tianjin China