1. From the Department of Neuroscience (A.C.F., V.A.R., B.S.F., S.P.C.), Kaiser Permanente, Redwood City, Redwood City, CA; the Department of Neurology (J.G.K.), Kaiser Permanente, Walnut Creek, Walnut Creek, CA; the Division of Research, Kaiser Permanente (C.C., S.S., M.S., S.C.J.), Oakland, CA; and the Department of Neurology (H.K., B.B.N., N.K.H., S.C.J.), University of California, San Francisco, San Francisco, CA.