Capital Medical University - Department of Neurology, Sui Hospital of Chinese Medicine, Capital Medical University - Department of Neurology, Capital Medical University - Department of Neurology, University of British Columbia (UBC), Medical University of South Carolina, Capital Medical University - Department of Neurology, Capital Medical University - Department of Neurology, Capital Medical University - Department of Neurology, University of Texas at Austin, St. Joseph's Hospital and Medical Center - Barrow Neurological Institute, University of Paris, University of Nottingham - Stroke Trials Unit, Capital Medical University - Department of Neurology, Capital Medical University - Department of Neurology and Capital Medical University - Department of Neurology