1 From the Department of Neurology (B.E.S.), University of Pittsburgh School of Medicine, PA; and Taub Institute for Research on Alzheimer's Disease and the Aging Brain (A.M.B.), Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY. snitzbe@upmc.edu.
2 From the Department of Neurology (B.E.S.), University of Pittsburgh School of Medicine, PA; and Taub Institute for Research on Alzheimer's Disease and the Aging Brain (A.M.B.), Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY.