1. From the Departments of Neurology (M.R.W., V.D., S.A.J., F.C.C., J.M.G.), Biochemistry and Biophysics (H.A.S., K.C.Z., J.L.D.), Laboratory Medicine (S.A., G.Y., S.F., D.S., B.B., B.H., S.M., C.Y.C.), and Epidemiology and Biostatistics (J.N.), the Department of Medicine, Division of Infectious Diseases (C.L., C.Y.C.), the Department of Medicine, Division of Hospital Medicine (A.B.), and Weill Institute for Neurosciences (M.R.W., V.D., S.A.J., F.C.C., J.M.G.), University of California, San Francisco (UCSF)...