[P1–410]: HIGHER PREVALENCE OF CEREBRAL WHITE MATTER HYPERINTENSITIES IN HOMOZYGOUS APOE‐ε4 ALLELE CARRIERS AGED 45 TO 75: RESULTS FROM THE ALFA STUDY. (1st July 2017) - Rojas, Santiago; Brugulat, Anna; Bargalló, Nuria; Minguillon, Carolina; Tucholka, Alan; Falcon, Carles; Carvalho, Andreia; Moran, Sebastian; Esteller, Manel; Gramunt, Nina; Fauria, Karine; Camí, Jordi; et al.