Sparrow, Annie K.; Brosseau, Lisa M.; Harrison, Robert J.; Osterholm, Michael T. (2021년 5월 25일). “Protecting Olympic Participants from Covid-19 — The Urgent Need for a Risk-Management Approach”. 《New England Journal of Medicine》 385 (1): e2. doi:10.1056/NEJMp2108567. ISSN0028-4793. PMID34033274. S2CID235201472.
Sparrow, Annie K.; Brosseau, Lisa M.; Harrison, Robert J.; Osterholm, Michael T. (2021년 5월 25일). “Protecting Olympic Participants from Covid-19 — The Urgent Need for a Risk-Management Approach”. 《New England Journal of Medicine》 385 (1): e2. doi:10.1056/NEJMp2108567. ISSN0028-4793. PMID34033274. S2CID235201472.
Sparrow, Annie K.; Brosseau, Lisa M.; Harrison, Robert J.; Osterholm, Michael T. (2021년 5월 25일). “Protecting Olympic Participants from Covid-19 — The Urgent Need for a Risk-Management Approach”. 《New England Journal of Medicine》 385 (1): e2. doi:10.1056/NEJMp2108567. ISSN0028-4793. PMID34033274. S2CID235201472.
Sparrow, Annie K.; Brosseau, Lisa M.; Harrison, Robert J.; Osterholm, Michael T. (2021년 5월 25일). “Protecting Olympic Participants from Covid-19 — The Urgent Need for a Risk-Management Approach”. 《New England Journal of Medicine》 385 (1): e2. doi:10.1056/NEJMp2108567. ISSN0028-4793. PMID34033274. S2CID235201472.