Department of Rehabilitation (Drs. Ishiai and Sugishita), Tokyo Metropolitan Institute for Neuroscience, Tokyo; the Department of Neurology (Dr. Ichikawa), Saitama Rehabilitation Center, Saitama; the Department of Neurology (Dr. Gono), Rehabilitation Center Kakeyu Hospital, Nagano; and the Department of Neurology (Dr. Watabiki), Musashino Red Cross Hospital, Tokyo, Japan.(1993-01時点)