O4–02–02: Plasma beta‐amyloid levels are significantly associated with a transition toward Alzheimer's disease as measured by cognitive decline and change in neocortical amyloid burden. (1st July 2013) - Rembach, Alan; Wilson, Bill; Villemagne, Victor; Ellis, Kathryn; Ames, David; Rowe, Christopher; Bush, Ashley; Martins, Ralph; Masters, Colin; Doecke, James