1 From the Center for Vital Longevity (D.C.P.), School of Behavioral and Brain Sciences, University of Texas at Dallas; Department of Psychiatry (D.C.P.), University of Texas Southwestern Medical Center, Dallas; and Sanders-Brown Center on Aging (E.L.A.) and Department of Epidemiology (E.L.A.), University of Kentucky, Lexington. denise@utdallas.edu.
2 From the Center for Vital Longevity (D.C.P.), School of Behavioral and Brain Sciences, University of Texas at Dallas; Department of Psychiatry (D.C.P.), University of Texas Southwestern Medical Center, Dallas; and Sanders-Brown Center on Aging (E.L.A.) and Department of Epidemiology (E.L.A.), University of Kentucky, Lexington.