Comparative safety and effectiveness of Pfizer BA.4-5 versus Sanofi during the spring 2023 COVID-19 booster vaccination programme in England: a matched cohort study in OpenSAFELY-TPP (2024)
Abstract
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Bibliographic Information
Digital Object Identifier: http://dx.doi.org/10.1101/2024.03.15.24304277
Publication URI: http://dx.doi.org/10.1101/2024.03.15.24304277
Type: Preprint