1. Features, Evaluation, and Treatment of Coronavirus (COVID-19) [Updated 2021 Apr 20];Cascella,2021
2. Pneumonia of unknown etiology in Wuhan, China: potential for International spread via commercial air travel;Bogoch;J. Trav. Med.,2020
3. The continuing 2019-NCoV epidemic threat of novel coronaviruses to global health — the latest 2019 novel coronavirus outbreak in Wuhan, China;Hui;Int. J. Infect. Dis.,2020
4. COVID-19 CORONAVIRUS PANDEMIC;Worldometer,2020
5. From SARS and MERS to COVID-19 : A Brief Summary and Comparison of Severe Acute Respiratory Infections Caused by Three Highly Pathogenic Human Coronaviruses;Zhu,2020