DOI:
10.1055/s-00025477
International Archives of Otorhinolaryngology
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References
Chappell B.
WHO Says COVID-19 Immunity Is An Unknown; Disease '10 Times Deadlier' Than 2009 Flu: NPR.
2020 [Available from:
https://www.npr.org/sections/coronavirus-live-updates/2020/04/13/833534116/who-says-covid-19-immunity-is-an-unknown-disease-10-times-deadlier-than-2009-flu
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