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Patterns of hospital utilization in the Unified Health System in six Brazilian capitals: comparison between the year before and the first six first months of the COVID-19 pandemic

Crossref DOI link: https://doi.org/10.1186/s12913-021-07006-x

Published Online: 2021-09-17

Published Print: 2021-12

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

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