1. From the Department of Life, Health, and Environmental Sciences (G.D., D.G., S.N., D.M., L.F., R.B., C.M., C.F.), University of L'Aquila, L'Aquila, Italy; Alzheimer's Unit (G.D., M.C.L.) and Geriatric Unit (G.D., A.R., M.C.L.), “SS Filippo e Nicola” Hospital, L'Aquila, Italy; Mars Inc (C.K.-U.), Mclean, VA; Department of Internal Medicine (L.G.), University of Pisa, Pisa, Italy.