1 From the Departments of Radiology (D.Q.B.), Neurology, and Psychological Sciences, Columbia, MO; and Department of Neurology (D.W.S.), Ohio State University, Columbus. beversdorfd@health.missouri.edu.
2 From the Departments of Radiology (D.Q.B.), Neurology, and Psychological Sciences, Columbia, MO; and Department of Neurology (D.W.S.), Ohio State University, Columbus.