1. WHO. World Heath Organization: Weekly epidemiological update - 5 January 2021. Available at: https://www.who.int/emergencies/diseases/novel-coronavirus-2019?adgroupsurvey={adgroupsurvey}&gclid=Cj0KCQjwktKFBhCkARIsAJeDT0hGfXhGFN0qbBQ1V-f0DGlgkjfarj75kY7HBK_d_WaSRQO4R-AobnoaAsVIEALw_wcB. Accessed January 6, 2021.
2. CDC. Centers for Disease Control and Prevention: Coronavirus Disease 2019 (COVID-19), CDC COVID Data Tracker. Available at: https://covid.cdc.gov/covid-data-tracker/#datatracker-home. Accessed January 6, 2021.
3. The trinity of COVID-19: Immunity, inflammation and intervention;Tay;Nat Rev Immunol,2020
4. Low dose radiation therapy for COVID-19 pneumonia: A double-edged sword;Kefayat;Radiother Oncol,2020
5. The risk of induced cancer and ischemic heart disease following low dose lung irradiation for COVID-19: Estimation based on a virtual case;Arruda;Int J Radiat Biol,2021