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. 2019 Oct 1;10:1052. doi: 10.3389/fneur.2019.01052

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Copyright © 2019 Zhang, Dou, Wang, Xu, Zhang, Sami, Hu, Rong, Xiao, Chen and Li.

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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Increased CV of dALFF in the left precuneus displayed in coronal (A), sagittal (B), transverse (C), and three-dimensional view (D). Box plots with Whiskers (min–max) show the CV values in the left precuneus of the two groups (E), and scatterplots show the relationship between the CV in the precuneus of the PD group and the disease duration (F). CV, coefficient of variation; dALFF, dynamic spontaneous low-frequency fluctuation.