1. Pardi, N., Hogan, M. J., Porter, F. W. & Weissman, D. mRNA vaccines — a new era in vaccinology. Nat. Rev. Drug Discov. 17, 261–279 (2018).
2. Cosma, S. et al. Coronavirus disease 2019 and first-trimester spontaneous abortion: a case–control study of 225 pregnant patients. Am. J. Obstet. Gynecol. https://doi.org/10.1016/j.ajog.2020.10.005 (2020).
3. Lu-Culligan, A. & Iwasaki, A. The false rumours about vaccines that are scaring women. New York Times (26 Jan 2021).
4. United States Food & Drug Administration. Pfizer-BioNTech COVID-19 vaccine (BNT162, PF-07302048). Vaccines and related biological products advisory committee briefing document. FDA https://www.fda.gov/media/144246/download (2020).
5. United States Food & Drug Administration. Vaccines and related biological products advisory committee meeting December 17, 2020. FDA briefing document: Moderna COVID-19 vaccine. FDA https://www.fda.gov/media/144434/download (2020).