From the Departments of Neurology, Boston University School of Medicine (Dr. Babikian), and the Harvard Medical School (Dr. Caplan), Boston, MA.
Received June 7, 1999.
Accepted in final form September 24, 1999.
Address correspondence and reprint requests to Dr. Viken L. Babikian, Department of Neurology, Boston University School of Medicine, Boston Veterans Affairs Medical Center, 150 South Huntington Avenue, Boston, MA 02130; e-mail: [email protected]
