1. Department of Neurology Hiroshima City Rehabilitation Hospital Hiroshima City Hiroshima Japan
2. Department of Rehabilitation Medicine Hiroshima City Rehabilitation Hospital Hiroshima City Hiroshima Japan
3. Department of Neurology Hiroshima City Hiroshima Citizens Hospital Hiroshima City Hiroshima Japan
4. Japan Community Healthcare Organization Hoshigaoka Medical Center Hirakata City Osaka Japan