References
[1] Wang D, Hu B, Hu C, et al. Clinical characteristics of 138 hospitalized patients with 2019 novel coronavirus–infected pneumonia in Wuhan, China. JAMA, 2020 , 323(11): 1061-1069.
[2] Li Q, Guan X, Wu P, et al. Early transmission dynamics in Wuhan, China, of novel coronavirus-infected pneumonia. N Engl J Med,2020, 382(13): 1199-1207.
[3] World Health Organization. WHO Director-General’s remarks at the media briefing on 2019-nCoV on 11 February 2020. Available at: