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ソース: Copilot との会話、 2024/8/10
(1) Symptoms of COVID-19 | COVID-19 | CDC - Centers for ....
https://www.cdc.gov/covid/signs-symptoms/index.html

(2) Symptoms of Coronavirus (COVID-19) - CDC Stacks.
https://stacks.cdc.gov/view/cdc/104267/cdc_104267_DS1.pdf

(3) Coronavirus disease 2019 (COVID-19) - Symptoms and causes.
https://www.mayoclinic.org/diseases-conditions/coronavirus/symptoms-causes/syc-20479963

(4) Clinical management of severe acute respiratory infection ....
https://www.who.int/docs/default-source/coronaviruse/clinical-management-of-novel-cov.pdf

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