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. 2013 Oct 3;8(10):e75740. doi: 10.1371/journal.pone.0075740

Figure 1. Chaos characterization of airflow during inspiration (Vt/Ti) and expiration (Vt/Te) in the controls and COPD patients.

Figure 1

A: Noise Limit value (%), B: largest Lyapunov exponent, C: correlation dimension. The boxes encompass the interquartile range with indication of the median, the whiskers delimit the 95th percentile of the data distribution. Paired and unpaired Ttest.