1. COVID-19 infection: origin, transmission, and characteristics of human coronaviruses;Shereen;J Adv Res,2020
2. The epidemiology and pathogenesis of coronavirus disease (COVID-19) outbreak;Rothan;J Autoimmun,2020
3. Hospitalization rates and characteristics of patients hospitalized with laboratory-confirmed coronavirus disease 2019 — COVID-NET, 14 states, March 1–30, 2020;Garg;MMWR (Morb Mortal Wkly Rep),2020