Guan, Wei-jie; Ni, Zheng-yi; Hu, Yu; Liang, Wen-hua; Ou, Chun-quan; He, Jian-xing; Liu, Lei; Shan, Hong i dr.. (28 February 2020). „Clinical Characteristics of Coronavirus Disease 2019 in China” (en). New England Journal of Medicine. DOI:10.1056/NEJMoa2002032. PMID32109013.
Guan, Wei-jie; Ni, Zheng-yi; Hu, Yu; Liang, Wen-hua; Ou, Chun-quan; He, Jian-xing; Liu, Lei; Shan, Hong i dr.. (28 February 2020). „Clinical Characteristics of Coronavirus Disease 2019 in China” (en). New England Journal of Medicine. DOI:10.1056/NEJMoa2002032. PMID32109013.