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Association between blood–urea–nitrogen-to-albumin ratio and in-hospital mortality in patients diagnosed with coronavirus disease 2019: a retrospective cohort study

Crossref DOI link: https://doi.org/10.1186/s40001-025-02338-4

Published Online: 2025-02-04

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

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