1. Department of Neurology, National Cerebral and Cardiovascular Center, Suita, Japan
2. Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Japan
3. Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
4. Department of Neurology, Bordeaux University Hospital, Bordeaux, France