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High‑flow nasal cannula is not more effective than conventional oxygen therapy for acute exacerbation of COPD with mild hypercapnia: we are not sure

Crossref DOI link: https://doi.org/10.1186/s13054-022-04022-z

Published Online: 2022-05-31

Published Print: 2022-12

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

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