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Correlations between cognitive impairment, insomnia, EDS, RBD, anxiety, depression and ALPS index in PD patients. (A–F) Correlations of the MoCA, PDSS-2, ESS, RBDSQ, HAMA, and HAMD scores with ALPS index in PD group. *indicates p value < 0.05; **indicates p value < 0.01; ***indicates p value < 0.001.
