1. National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University , Beijing 100053 , China
2. Department of Neurology, Xuanwu Hospital of Capital Medical University , Beijing 100053 , China
3. Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Beijing Key Laboratory for Parkinson’s Disease, Parkinson Disease Center of Beijing Institute for Brain Disorders , Beijing , China
4. Clinical Center for Parkinson’s Disease, Capital Medical University , Beijing , China
5. Advanced Innovation Center for Human Brain Protection, Capital Medical University , Beijing , China