Gottesman RF, Schneider AL, Zhou Y, Chen X, Green E, Gupta N, Knopman DS, Mintz A, Rahmim A, Sharrett AR, Wagenknecht LE, Wong DF, Mosley TH. The ARIC-PET amyloid imaging study: Brain amyloid differences by age, race, sex, and APOE. Neurology. 2016 Aug 02; 87(5):473-80.