Holshue ML, DeBolt C, Lindquist S, Lofy KH, dll. (Mac 2020). "First Case of 2019 Novel Coronavirus in the United States". N. Engl. J. Med. (dalam bahasa Inggeris). 382 (10): 929–936. doi:10.1056/NEJMoa2001191. PMID32004427.
Holshue ML, DeBolt C, Lindquist S, Lofy KH, dll. (Mac 2020). "First Case of 2019 Novel Coronavirus in the United States". N. Engl. J. Med. (dalam bahasa Inggeris). 382 (10): 929–936. doi:10.1056/NEJMoa2001191. PMID32004427.