[IC‐P‐055]: EFFECT OF APOE‐ε2 ON REGIONAL GRAY MATTER ATROPHY AND CLINICAL PHENOTYPE IN ALZHEIMER's DISEASE. (1st July 2017) - Groot, Colin; van der Weijden, Chris W.J.; van der Flier, Wiesje M.; van Loenhoud, Anita C.; van Berckel, Bart N.M.; Barkhof, Frederik; Koene, Teddy; Teunissen, Charlotte E.; Scheltens, Philip; Ossenkoppele, Rik