[O5–01–05]: COHORT AND RACE DIFFERENCES IN FACTORS ASSOCIATED WITH ATTRITION IN LONGITUDINAL STUDIES OF ALZHEIMER's DISEASE. (1st July 2017) - Edwards, Dorothy Farrar; Gleason, Carey E.; Blazel, Hanna; Carlsson, Cynthia M.; Spalitta, Alice; Stark, Susan; Asthana, Sanjay