1. Cerebral Vascular Diseases Research Institute (China-America Institute of Neuroscience) and Neurology Department, Xuanwu Hospital, Capital Medical University, Key Lab of Neurodegenerative Diseases of Ministry of Education, Beijing, China
2. Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
3. Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
4. Department of Biochemistry & Molecular Biology/Complex Carbohydrate Research Center, University of Georgia, Athens, GA, USA