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. 2023 Oct 5;6(1):fcad252. doi: 10.1093/braincomms/fcad252

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© The Author(s) 2023. Published by Oxford University Press on behalf of the Guarantors of Brain.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Perfusion levels across the left and right hemispheres in the aphasia and the control groups. Mean perfusion values for the aphasia (n = 43) and the control (n = 25) groups across left and right hemisphere ROIs. Asterisks mark significant differences between groups for a given ROI. (A) Mean raw perfusion. (B) Mean adjusted perfusion. The statistical comparisons were done using the independent samples t-test/Welch’s test/non-parametric two-sample Wilcoxon rank test (see section Statistical analysis for further details). See Supplementary Tables A1 (raw perfusion) and A2 (adjusted perfusion) for actual values and relevant test statistics.