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Comparison between the characteristics and outcomes of patients hospitalized for COVID-19 in three waves of the pandemic: a retrospective analysis. [PDF]

open access: yesInfect Dis Poverty
Porto BM   +19 more
europepmc   +1 more source

Racial and Ethnic Differences in COVID-19 Disease Severity Among US Adults in Health Systems Participating in PCORnet®: May 2020-October 2022. [PDF]

open access: yesMed Care
Simon-Friedt B   +11 more
europepmc   +1 more source

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