P2‐294: RETROSPECTIVE REVIEW OF CLINICAL FEATURES OF ABCA7 LOSS‐OF‐FUNCTION MUTATION CARRIERS IN LATE‐ONSET ALZHEIMER'S DISEASE. (1st July 2019) - Stephens, Alana; Allen, Mariet; Atik, Merve; Lincoln, Sarah J.; Malphrus, Kimberly G.; Nguyen, Thuy; Corda, Morgane M.; Conway, Olivia J.; Graff-Radford, Neill R.; Dickson, Dennis W.; Ertekin-Taner, Nilufer