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. 2021 Oct 26;15:728874. doi: 10.3389/fnins.2021.728874

FIGURE 3.

FIGURE 3

The ROC curve of four different feature extraction methods in both discriminating the cognitive impairment (CI) subjects from normal cognition (NC) subjects (left), as well as type 2 diabetes mellitus (T2DM) subjects from individuals without T2DM (NT) (right).