1. From the Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, China (L.L., J.L., Yilong Wang, Yongjun Wang)
2. China National Clinical Research Center for Neurological Diseases, Ministry of Science and Technology, Beijing (L.L., J.L., Yilong Wang, Yongjun Wang)
3. Illinois Neurological Institute Stroke Network, Sisters of the Third Order of St Francis Healthcare System, University of Illinois College of Medicine, Peoria (D.W.).