1. Department of Endocrinology, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China
2. Department of Rheumatology, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China
3. Department of Neurobiology, Geriatrics, and Neurology, Xuanwu Hospital, No. 45 Changchun St., Xicheng District, Beijing, China
4. Department of Neurology, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China
5. Parkinson’s Disease Center of Beijing Institute for Brain Disorders, Beijing 100053, China
6. Key Laboratory on Neurodegenerative Disease of Ministry of Education, Beijing 100053, China
7. Beijing Key Laboratory for Parkinson’s Disease, Beijing 100053, China