Figure 2From: Patterns of airway inflammation and MMP-12 expression in smokers and ex-smokers with COPDDifferential cell counts in IS and BAL (106/ml). Differential cell composition in IS (A) and BAL (B) from COPD smokers, COPD ex-smokers, 'healthy' smokers and healthy never-smokers. Data are shown as mean ± SEM. *p < 0.05 compared to healthy never-smokers, #p < 0.05 compared to 'healthy' smokers.Back to article page