Environmental triggers of COPD symptoms: a case cross-over study
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DOI: 10.1136/bmjresp-2017-000179
Abstract: Introduction This study investigated the hypothesis that common environmental chemical exposures with known irritant or sensitising properties trigger exacerbations for patients with chronic obstructive pulmonary disease (COPD). Methods We conducted a case cross-over study in… read more here.
Keywords: exacerbation; cross study; study; case cross ... See more keywords