P4‐012: A RANDOMIZED CONTROLLED TRIAL OF THE EFFECT OF ASPIRIN VERSUS PLACEBO ON INCIDENT DEMENTIA AND PROBABLE ALZHEIMER'S DISEASE. (1st July 2019) - Ryan, Joanne; Storey, Elsdon; Murray, Anne; Woods, Robyn; Chong, Trevor; Burns, Christine; Williamson, Jeff D.; Ward, Stephanie Alison; Wolfe, Rory; Lockery, Jessica; Orchard, Suzanne; Reid, Christopher; et al.