1. Departments of Neurology (C.L., P.H.K.), University of Alabama at Birmingham.
2. Birmingham VA Medical Center, AL (C.L., P.H.K., J.S.R.).
3. Surgery (J.S.R.), University of Alabama at Birmingham.
4. Psychiatry (L.L.D.), University of Alabama at Birmingham.
5. Tuscaloosa VA Medical Center, AL (L.L.D.).