1. Department of Neurology, Northwestern University, Feinberg School of Medicine, Chicago, IL (B.S., R.D., J.L., D.P., T.M., K.D., M.B.P., F.Z.C., R.A.B., S.U.).
2. Department of Neurology, University of Michigan, Ann Arbor (B.S.).
3. Department of Pathology (C.H., N.K., M.E.)
4. Departments of Neurosurgery and Radiology (M.B.P.)