Fig. 1From: The association between airway eosinophilic inflammation and IL-33 in stable non-atopic COPDIL-33 concentrations in exhaled breath condensate (EBC) in healthy non-smokers, asthmatics and non-atopic COPD subjects (a). Data are presented as mean ± SEM. Correlations between EBC IL-33 and blood eosinophil numbers (b) and percentage (c) in COPD patients. *p < 0.05Back to article page