DOI:
10.1055/s-00025477
International Archives of Otorhinolaryngology
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References
Wei WE, Li Z, Chiew CJ, Yong SE, Toh MP, Lee VJ.
Presymptomatic Transmission of SARS-CoV-2 - Singapore, January 23-March 16, 2020.
MMWR Morb Mortal Wkly Rep 2020;
69 (14) 411-415 . Doi: 10.15585/mmwr.mm6914e1
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