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. 2022 Jun 8:ciac460. doi: 10.1093/cid/ciac460

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© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

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Figure 3. — Flow chart of inclusion and exclusion criteria in the nested case-control analysis and SCCS analysis. Abbreviations: HA, Hospital Authority; SCCS, self-controlled case series.