1. From the Research Service (J.L.C., A.J.E., G.L.K.), Hines VA Hospital, Hines, Ill, USA; the Department of Neurology (J.L.C., G.L.K.), Loyola University Medical Center, Maywood, Ill, USA; the Neuroscience Institute (J.L.C., A.J.E., G.L.K.), Loyola University Medical Center, Maywood, Ill, USA; the Brain Research Institute (M.E.S.), University of Zurich, Switzerland; the Department of Biology (M.E.S.), Swiss Federal Institute of Technology, Zurich, Switzerland; the Neurology Service (G.L.K.), Hines VA...