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Holshue ML, DeBolt C, Lindquist S, Lofy KH, Wiesman J, Bruce H, et al. (Washington State 2019-nCoV Case Investigation Team) (March 2020). „First Case of 2019 Novel Coronavirus in the United States“. The New England Journal of Medicine. 382 (10): 929–936. doi:10.1056/NEJMoa2001191. PMID32004427.