1. Department of Neurology Hiroshima City Hiroshima Citizens Hospital Hiroshima Japan
2. Department of Clinical Neuroscience and Therapeutics Hiroshima University Hiroshima Japan
3. Department of Neurology Hiroshima Prefectural Hospital Hiroshima Japan
4. Department of Internal Medicine Hiroshima Teishin Hospital Hiroshima Japan
5. Department of Neurology Brain Attack Center Ota Memorial Hospital Fukuyama Japan