1 From the Department of Neurology (H.J.K.), George Washington University; GW Medical Faculty Associates (H.J.K.), Washington, DC; and the Department of Neurology (N.B.), University of Pittsburgh, PA. HKaminski@mfa.gwu.edu.
2 From the Department of Neurology (H.J.K.), George Washington University; GW Medical Faculty Associates (H.J.K.), Washington, DC; and the Department of Neurology (N.B.), University of Pittsburgh, PA.