fig2
Figure 2. Differences in brain MRI scans between groups. Significant differences were found in Wilcoxon tests, and the corresponding P values are shown. PD: PD patients with normal cognition; PD-CI: PD patients with cognitive impairment; R: right; L: left; DWMH: deep white matter hyperintensity; GM: gray matter; PVH: periventricular hyperintensity; MRI: magnetic resonance imaging.
