From the Department of Neurology (A.D.G., S.R.S.), University of Rochester, NY; Department of Neurology (T.R.B.), Evergreen Hospital Medical Center, Seattle, WA; Department of Neurology (J.A.C.), Cleveland Clinic Foundation, OH; Department of Neurology (L.K.), Stony Brook University Hospital, NY; Minneapolis Clinic of Neurology (R.S.), MN; and Acorda Therapeutics, Inc. (R.C., L.N.M., A.R.B.), Hawthorne, NY. (At 2008-10-07)