[P3–348]: EXPLORING THE POPULATION PREVALENCE OF β‐AMYLOID BURDEN: AN ANALYSIS OF 250 INDIVIDUALS BORN IN MAINLAND BRITAIN IN THE SAME WEEK IN 1946. (1st July 2017) - Schott, Jonathan M.; Cash, David M.; Lane, Christopher A.; Parker, Thomas; Burgos, Ninon; Modat, Marc; Beasley, Daniel; Dickson, John; Barnes, Anna; Thomas, David L.; Murray‐Smith, Heidi; Wong, Andrew; et al.