1. W.-j. Guan , et al., New England Journal of Medicine (2020).
2. World Health Organization, Coronavirus disease (covid-19) outbreak.
3. World Health Organization, who director-general’s opening remarks at the media briefing on covid-19 - 11 march 2020.
4. Z. Wu , J. M. McGoogan , Jama (2020).
5. K. Mizumoto , K. Kagaya , A. Zarebski , G. Chowell , Eurosurveillance 25 (2020).