1. From the Department of the History of Medicine and Medical Scientist Training Program (M.O.K.), Johns Hopkins School of Medicine; Department of Neurology (M.O.K., K.B., B.C., C.E.G., R.M.E.S., D.G.L., C.G.R.), Johns Hopkins School of Medicine, Baltimore MD; Sentara Medical Group (M.R.H.), Norfolk, VA; and Kennedy Krieger Institute (D.G.L.), Baltimore, MD.