1. World Health Organization. Coronavirus disease 2019 (COVID-19) Situation Report—51. Geneva: WHO. (2020). Retrieved May 13, 2020 from
www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports
.
2. Zhu, N., Zhang, D., Wang, W., et al. (2020). A novel coronavirus from patients with pneumonia in China, 2019. New England Journal of Medicine, 382, 727–733.
https://doi.org/10.1056/NEJMoa2001017
.
3. Guan, W., Ni, Z., Hu, Y., et al. (2020). Clinical characteristics of coronavirus disease 2019 in China. New England Journal of Medicine.
https://doi.org/10.1056/nejmoa2002032
.
4. WHO. Coronavirus disease 2019 (COVID-19): World Health Organization. 2020. [Online]. Retrieved May 13, 2020 from
https://www.who.int/emergencies/diseases/novel-coronavirus-2019
.
5. WHO Director-General’s opening remarks at the media briefing on COVID-19—11 March 2020. Retrieved May 13, 2020 from
https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---11-march-2020
.