Baden, L. R., Sahly, H. M. E., Essink, B., Kotloff, K., Frey, S., Novak, R., et al. (2021). Efficacy and Safety of the mRNA-1273 SARS-CoV-2 Vaccine. The New England Journal Of Medicine, 384(5), 403-416. https://doi.org/10.1056/NEJMoa2035389 (Original work published 2021)