1. From the Stroke Clinical Research Unit, Department of Neurology, West China Hospital, Sichuan University, Chengdu, P. R. China (J.L., M.L.)
2. Department of Clinical Neurosciences, Stroke Research Group, University of Cambridge, United Kingdom (J.L., L.R.-J., H.S.M., M.T.)
3. Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany (L.R.-J.).