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Reliever salbutamol use as a measure of exacerbation risk in chronic obstructive pulmonary disease

Crossref DOI link: https://doi.org/10.1186/s12890-015-0077-0

Published Online: 2015-08-21

Published Print: 2015-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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