Cite
MLA Citation
Adam S Lauring et al.. “Clinical severity of, and effectiveness of mRNA vaccines against, covid-19 from omicron, delta, and alpha SARS-CoV-2 variants in the United States: prospective observational study.” BMJ, vol. 376, 2022, p. . http://access.bl.uk/ark:/81055/vdc_100151268966.0x00000a