Blood and sputum eosinophilia in chronic obstructive pulmonary disease patients and their association with exacerbations: a prospective observational study from a tertiary care center
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Identification of the chronic obstructive pulmonary disease (COPD) phenotype allows selection of the most appropriate drug for each patient. Blood eosinophilia, as a surrogate marker for airway eosinophilia, has been associated with a phenotype of COPD exacerb... ...
