Cite
MLA Citation
Merryn Voysey et al.. “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, vol. 397, no. 10269, 2021, pp. 99–111. http://access.bl.uk/ark:/81055/vdc_100119338206.0x000052