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. 2015 Feb 24;5:8564. doi: 10.1038/srep08564

Figure 1. Morphological features of pulmonary artery of nonsmoker group, smoker group, and COPD group.

Figure 1

(A). The lung sections were stained with H&E to evaluate the vessel wall thickness (Scale bars: 20 μm). (B). Pulmonary vessel wall thickness (WT) was expressed as % total diameter in pulmonary arteries. *P < 0.05 versus nonsmoker group.