1 From the Department of Neurology (P.M.V.), University of California Los Angeles; Vassar Brothers Medical Center (J.F.), Poughkeepsie, NY; and Department of Neurology (S.A.J.), University of California San Francisco. pvespa@mednet.ucla.edu.
2 From the Department of Neurology (P.M.V.), University of California Los Angeles; Vassar Brothers Medical Center (J.F.), Poughkeepsie, NY; and Department of Neurology (S.A.J.), University of California San Francisco.