1. From the Department of Medicine, Southern Clinical School (A.G.T., J.K., S.A.), and Department of Physiology (V.D., R.G.E.), Monash University, Melbourne, Victoria, Australia; Florey Neuroscience Institutes, Heidelberg, Victoria, Australia (A.G.T.); Menzies Research Institute, University of Tasmania, Tasmania, Australia (S.L.G.); and Caulfield Hospital, Caulfield, Victoria, Australia (M.L.).