1. U.S. Food & Drug Administeration.Emergency use authorization letter for Janssen COVID‐19 vaccine. Accessed July 2022.https://www.fda.gov/media/146303/download
2. The Advisory Committee on Immunization Practices’ Interim Recommendation for Use of Janssen COVID-19 Vaccine — United States, February 2021
3. U.S. Food & Drug Administeration.Fact sheet for healthcare providers administering vaccine (vaccination providers). Emergency use authorization (EUA) of Janssen COVID‐19 vaccine to prevent coronavirus disease 2019 (COVID‐19). Accessed July 2022.https://www.fda.gov/media/146304/download
4. U.S. Food & Drug Administeration.FDA Briefing Document: Janssen Ad26.COV2.S Vaccine for the Prevention of COVID‐19. Accessed July 2022.https://www.fda.gov/media/146217/download
5. US Case Reports of Cerebral Venous Sinus Thrombosis With Thrombocytopenia After Ad26.COV2.S Vaccination, March 2 to April 21, 2021