Ma YL. Infectious diseases. Shanghai: Shanghai Science and Technology Press; 2011.

Peng WW, Gan MJ. Contemporary infections and infectious diseases. Beijing: Science Press; 2000.

Peris JS, Chu CM, Cheng VC, et al. Clinical progression and viral load in a community outbreak of coronavirus-associated SARS pneumonia: a prospective study. Lancet. 2003;361(9371):1767–72.CrossRef