1. Considerations for reopening U.S,2020
2. Impacts of the COVID-19 pandemic on life of higher education students: A global perspective;Aristovnik;Sustainability,2020
3. Nursing students' views on the COVID-19 pandemic and their perceived stress levels;Aslan;Perspectives in Psychiatric Care,2020
4. Center of Disease Control and Prevention. (2021, January 21). First travel-related case of 2019 novel coronavirus detected in United States. https://www.cdc.gov/media/releases/2020/p0121-novel-coronavirus-travel-case.html.
5. Centers for Disease Control (2020, November 20). COVID-19 Outbreak – New York City, February 29 – June 1, 2020. https://www.cdc.gov/mmwr/volumes/69/wr/mm6946a2.htm