Citation
Voysey, M., Costa Clemens, S. A., Madhi, S. A., Weckx, L. Y., Folegatti, P. M., Aley, P. K., …Oxford COVID Vaccine Trial Group, . (2021). Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK. Lancet, 397(10269), 99-111. https://doi.org/10.1016/S0140-6736%2820%2932661-1
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Covid-19
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