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The study procedure of image preprocessing, functional network construction, DC, correlation, and ROC analysis (rs-fMRI, resting-state functional magnetic resonance imaging; T1-WI, T1-weighted imaging; FC, functional connectivity; HC, healthy control; PD FOG+, Parkinson's disease with freezing of gait; PD FOG−, Parkinson's disease without freezing of gait; DC, degree centrality; ROC, receiver operating characteristic curve).
