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. 2021 Nov 15;13:770528. doi: 10.3389/fnagi.2021.770528

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Copyright © 2021 Shang, Zhang, Feng, Wu, Dou, Chen and Yin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The alterations of CBF-ReHo ratio, CBF, and ReHo in brain regions with significant group differences using the voxel-based analyses. *Indicates significant intergroup difference to the HC group; ^#indicates significant intergroup difference to the PD-NC group. CBF, cerebral blood flow; ReHo, regional homogeneity; PD, Parkinson’s disease; NC, normal cognition; MCI, mild cognitive impairment; L, left; R, right; PoG, postcentral gyrus; LG, lingual gyrus; RG, rectus gyrus; STG, superior temporal gyrus; MTG, middle temporal gyrus.