[P1–416]: CSF TOTAL TAU AS A BIOMARKER FOR NEURONAL INJURY IN ALZHEIMER's DISEASE: ALIGNING RATES OF CSF CHANGE WITH RATES OF HIPPOCAMPAL AND CORTICAL GRAY MATTER ATROPHY. (1st July 2017) - Doecke, James D.; Li, Qiao‐Xin; Bourgeat, Pierrick; Fowler, Christopher; Collins, Steven; Varghese, Shiji; Dore, Vincent; Rowe, Christopher C.; Masters, Colin L.; Villemagne, Victor LL.; Salvado, Olivier