1. Clinical College of Neurology, Neurosurgery and Neurorehabilitation Tianjin Medical University Tianjin China
2. Department of Neurology The Second Affiliated Hospital of Baotou Medical College Baotou China
3. Department of Neurology Cangzhou People's Hospital Cangzhou Hebei China
4. Department of Neurology, Beijing Tiantan Hospital Capital Medical University Beijing China
5. Department of Neurology Tianjin Huanhu Hospital Tianjin China
6. Department of Neurology, Beijing Tiantan Hospital, Capital Medical University China National Clinical Research Center for Neurological Diseases Beijing China