1. From the Center for Human Genetic Research (H.B.B., W.T.K., J.R.), Departments of Neurology (H.B.B., W.T.K., K.S., S.M.G., J.R., J.N.G.), Neurosurgery (H.B.B., C.S.O.), Radiology (J.M.R.), and Emergency Medicine (J.N.G.), Massachusetts General Hospital, Harvard Medical School, Boston, MA; Department of Neurology and Neurosurgery (H.B.B., D.B., C.J.M.K., L.R., G.J.E.R.), Rudolf Magnus Institute of Neuroscience, Utrecht, The Netherlands; Department of Radiology (B.K.V.), University Medical Center...