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Small airway function measured using forced expiratory flow between 25% and 75% of vital capacity and its relationship to airflow limitation in symptomatic ever-smokers: a cross-sectional study

Crossref DOI link: https://doi.org/10.1136/bmjresp-2022-001385

Published Online: 2022-10-06

Published Print: 2022-10

Update policy: https://doi.org/10.1136/crossmarkpolicy

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