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. 2018 Jun 1;19:108. doi: 10.1186/s12931-018-0807-y

Fig. 1.

Fig. 1

IL-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 < 0.05