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. 2008 Oct 10;40(3):359–367. doi: 10.1165/rcmb.2008-0114OC

Figure 3.

Figure 3.

Distribution of quantitative biomarkers. Venn diagram showing relationships for biomarkers of quantitative COPD phenotypes (FEV1%predicted and FEV1/FVC) at significance levels of P < 0.05 (top) or P < 0.01 (bottom).