1. From the Translational and Clinical Research Institute (C.A.H., P.C.D., R.D., J.C., K.O., G.R., M.J.F., J.-P.T., A.J.T.), Newcastle University; Centre for Research in Ageing and Cognitive Health (L.M.A.), University of Exeter; and Department of Psychiatry (J.T.O.B.), School of Clinical Medicine, University of Cambridge, United Kingdom.