1. Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
2. China National Clinical Research Center for Neurological Diseases, Beijing, China
3. Beijing Neurosurgical Institute, Beijing, China
4. Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
5. Department of Internal Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
6. Center for Cognitive Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
7. Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing, China
8. Center of Parkinson’s Disease, Beijing Institute for Brain Disorders, Beijing, China
9. Beijing Key Laboratory on Parkinson’s Disease, Beijing, China