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In combination, the invasive and noninvasive metrics (a) discriminate the AKI from the control group and the heterogeneity of each group is visible by the size of the circle surrounding the individual data points. A single animal was misclassified by the noninvasive (b) and 3 animals by the invasive (c) metrics. Extensive variability in the AKI group is captured in both the noninvasive and invasive cluster analysis.
