1. World Health Organization. Coronavirus disease (COVID-19) situation report-127. World Health Organisation (WHO); 2020:1–17. Available from: https://apps.who.int/iris/handle/10665/332232. Accessed February 20, 2021.
2. World Health Organisation. Draft landscape and tracker of COVID-19 candidate vaccines. World Health Organisation (WHO); 2020. Available from: https://www.who.int/publications/m/item/draft-landscape-of-covid-19-candidate-vaccines. Accessed February 20, 2021.
3. FDA Briefing Document. Pfizer-BioNTech COVID-19 vaccine. U.S. Food and Drug Administration; 2020:1–53. Available from: https://www.fda.gov/media/144245/download. Accessed February 11, 2021.
4. FDA Briefing Document. Moderna COVID-19 Vaccine. U.S. Food and Drug Administration; 2020:1–54. Available from: https://www.fda.gov/media/144434/download. Accessed February 11, 2021.