Association of Midlife Plasma Amyloid-β Levels With Cognitive Impairment in Late Life: The ARIC Neurocognitive Study.

Sullivan KJ, Blackshear C, Simino J, Tin A, Walker KA, Sharrett AR, Younkin S, Gottesman RF, Mielke MM, Knopman D, Windham BG, Griswold ME, Mosley TH.