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. 2009 Oct 27;31(7):943–957. doi: 10.1002/hbm.20908

Figure 8.

Figure 8

N‐maps for a cross‐sectional VBM study, where N represents the number of subjects per group required to detect a difference in GM density of 0.05 within a voxel with a level of significance of α = 0.05 and with power 1‐β = 0.90.