Kong W, Wang Y, Hu J, Chughtai A, et al. Comparison of clinical and epidemiological characteristics of asymptomatic and
symptomatic SARS-CoV-2 infection: A multi-center study in Sichuan Province,
China. Travel Med Infect Dis 2020 May 31:101754. doi: 10.1016/j.tmaid.2020.101754.
PMID: 32492485