Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England: test negative case-control study

Lopez Bernal, Jamie ; Andrews, Nick ; Gower, Charlotte ; Robertson, Chris ; Stowe, Julia ; Tessier, Elise ; Simmons, Ruth ; Cottrell, Simon ; Roberts, Richard ; O’Doherty, Mark ; Brown, Kevin ; Cameron, Claire ; Stockton, Diane ; McMenamin, Jim ; Ramsay, Mary

BMJ (Online), 2021-05, Vol.373, p.n1088-n1088 [Periódico revisado por pares]

England: BMJ Publishing Group LTD

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