Relationship of fractional exhaled nitric oxide with blood eosinophilia in characterizing type-2 airway inflammation in treatment-naïve patients with chronic obstructive pulmonary disease
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Fractional exhaled nitric oxide (FeNO), a sensitive and reproducible, non-invasive biomarker for type-2 (T2) inflammation in asthma, remains underutilized in chronic obstructive pulmonary disease (COPD). We investigated the potential role of FeNO and its relat... ...
