1. US Food and Drug Administration. Letter granting emergency use authorization amendment, Janssen covid-19 vaccine. 12 Jul 2021. https://www.fda.gov/media/150723/download
2. European Medicines Agency. Meeting highlights from the Pharmacovigilance Risk Assessment Committee (PRAC) 5-8 July 2021. 9 Jul 2021. https://www.ema.europa.eu/en/news/meeting-highlights-pharmacovigilance-risk-assessment-committee-prac-5-8-july-2021
3. European Medicines Agency. EMA advises against use of covid-19 vaccine Janssen in people with history of capillary leak syndrome. 9 Jul 2021. https://www.ema.europa.eu/en/news/ema-advises-against-use-covid-19-vaccine-janssen-people-history-capillary-leak-syndrome
4. European Medicines Agency. Comirnaty and Spikevax: possible link to very rare cases of myocarditis and pericarditis. 9 Jul 2021. https://www.ema.europa.eu/en/news/comirnaty-spikevax-possible-link-very-rare-cases-myocarditis-pericarditis
5. US Food and Drug Administration. Letter granting emergency use authorization amendment, Moderna covid-19 vaccine. 25 Jun 2021. https://www.fda.gov/media/150723/download