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Figure 6: Examples of PMTF peak and valley maximum values over time for three subjects in the control group. (a) Peak thresholds. (b) Valley thresholds. Each symbol indicates the same subject in both parts of the figure

Figure 6: Examples of PMTF peak and valley maximum values over time for three subjects in the control group. (a) Peak thresholds. (b) Valley thresholds. Each symbol indicates the same subject in both parts of the figure