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3. Centers for Disease Control and Prevention. Strategies for optimizing the supply of facemasks. Available at: https://www.cdc.gov/coronavirus/2019-ncov/hcp/ppe-strategy/face-masks.html. Accessed March 24, 2020
4. The American Board of Pediatrics. COVID-19 updates. Available at: https://www.abp.org/news/covid-19-updates. Accessed April 14, 2020
5. Nasca TJ; Accreditation Council for Graduate Medical Education. ACGME response to the coronavirus (COVID-19). Available at: https://acgme.org/Newsroom/Newsroom-Details/ArticleID/10111/ACGME-Response-to-the-Coronavirus-COVID-19. Accessed April 14, 2020