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Results of voxel-wise t-tests of gray matter distributions between the cluster 8 and the union of clusters 6 and 7 in Figure 1. The precuneus and the frontal lobe of cluster 8 subjects are on average more atrophic than with subjects in clusters 6 and 7. Coronal and transverse views are shown in Supplementary Results (Figures 6 b and 6 c). The FDR value is 0.0109.
