Affiliation: | 1. Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China;2. Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, China;3. Key Laboratory of Neurodegenerative Diseases (Capital Medical University), Ministry of Education, Beijing, China;4. Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA |