1. From the Department of Neurosurgery (D.W., T.J.O., D.A.N., J.R.M., L.M.T., J.R.M., C.S., A.J.A., H.S., C.P.K., R.A.D.L., S.A.M., S.P., J.M., J.T.F.), Department of Neurology (D.W., N.W., L.S., J.L., H.S., S.A.M., S.T., J.T.F.), Department of Radiology (D.W., R.A.D.L., J.T.F.), and Department of Geriatrics and Palliative Care Medicine (S.T.), Icahn School of Medicine at Mount Sinai, New York, NY.