Waning effectiveness of BNT162b2 and ChAdOx1 covid-19 vaccines over six months since second dose: OpenSAFELY cohort study using linked electronic health records
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author: William Hulme Lisa E M Hopcroft Edward P.K. Parker David Evans Seb Bacon Jonathan Sterne Helen J Curtis Amelia Green Jessica Morley Caroline E Morton Venexia M Walker Ruth Keogh Brian MacKenna Ben Goldacre Elsie M. F. Horne Elizabeth Williamson Alex J Walker Richard Croker Tom Palmer Miguel Hernán |
| Publication date | July 20, 2022 |
| Language | English |
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