1. From the Departments of Neurology (D.C.H., M.N.H.) and Medicine (K.B.), Medical College of Georgia, Georgia Health Sciences University, Augusta, GA; Program in Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA (D.C.H., M.N.H.); and Charlie Norwood VA Medical Center, Augusta, GA (M.N.H.).