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Figure 5.
Smoking history and MMP-12+-macrophages. Correlation between smoking history (pack-years) and MMP-12+-macrophages (%) in BAL samples from COPD smokers, COPD ex-smokers and 'healthy' smokers (p < 0.05).
Babusyte et al. Respiratory Research 2007 8:81 doi:10.1186/1465-9921-8-81
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