Fig. 4From: The effects of corticosteroids on COPD lung macrophages: a pooled analysisIndividual dexamethasone concentration response curves. The individual concentration response curves for dexamethasone inhibition of TNF-α (a, b and c), IL-6 (d, e, and f) and CXCL8 (g, h and i) are shown for never smokers (NS; a, d and g), smokers (S; b, e, and h) and COPD patients (c, f and i)Back to article page