1. Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
2. Department of Geriatrics, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
3. Core Laboratory for Clinical Medical Research, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
4. Department of Physiology, Capital Medical University, Beijing, China
5. Department of Neurology, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
6. Department of Neurology, Beijing Xuanwu Hospital, Capital Medical University, Beijing, China
7. China National Clinical Research Center for Neurological Diseases, 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