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Comparison of (A) breath‐by‐breath and (B) averaged* duty cycle (tI/tTot) between PNT and SLP. Note, a single point on the left graph is covered by the label. *Difference between the mean for each subject. LOA, limits of agreement; m, mean; PNT, pneumotachography; SLP, structured light plethysmography; tI, inspiratory time; tTot, total breath time.
