1. Department of Cerebrovascular Medicine; National Cerebral and Cardiovascular Center; Osaka Japan
2. Neurological and Mental Health Division; The George Institute for Global Health Australia; Sydney Australia
3. The George Institute for Global Health China; Peking University Health Sciences Center; Beijing P.R. China
4. Division of Medicine; University of New South Wales; Sydney Australia
5. Neurology Department; Royal Prince Alfred Hospital; Sydney Australia