Association of elevated fractional exhaled nitric oxide concentration and blood eosinophil count with severe asthma exacerbations
Halpin, David M.
JournalClinical and Translational Allergy
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Blood eosinophil count (BEC) and fractional exhaled nitric oxide (FeNO) concentration are established biomarkers in asthma, associated particularly with the risk of exacerbations. We evaluated the relationship of BEC and FeNO as complementary and independent biomarkers of severe asthma exacerbations.