1. The authors are in the School of Medicine and VA Pittsburgh GRECC,
University of Pittsburgh, Pittsburgh, PA 15213, USA (S.S.); the Center on Aging and Health and the Department of Mental Health at The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA (M.C.C. and G.W.R.); the Institute for the Study of Aging and the Alzheimer's Drug Discovery Foundation, New York, NY 10153, USA and The Mount Sinai Medical Center, New York, NY , 10029 USA (H.F.); the Beckman Institute and the...