Clinical features and outcomes in adults with COVID-19 during the pre-Omicron and Omicron waves
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Objectives: We conducted a single-center retrospective study to compare patient characteristics and death rates during the Omicron (O, December 01, 2021, to September 30, 2022) and pre-Omicron (PO, March 01, 1920, to October 31, ... ...
