1. From the Division of Research, Kaiser Permanente Northern California, Oakland, (A.C.F., C.C.); Department of Neuroscience (A.C.F., S.L.C., V.A.R.) and Department of Cardiology (X.R.), Kaiser Permanente, Redwood City, CA; Department of Neurology, Cornell University, New York, NY (H.K.); and Department of Neurology, University of Texas at Austin (S.C.J.).