Challenges in estimating waning effectiveness of two doses of BNT162b2 and ChAdOx1 COVID-19 vaccines beyond six months: an OpenSAFELY cohort study using linked electronic health records (2023)

Abstract

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Bibliographic Information

Digital Object Identifier: http://dx.doi.org/10.1101/2023.01.04.22283762

Publication URI: http://dx.doi.org/10.1101/2023.01.04.22283762

Type: Preprint