1. Understanding COVID-19 vaccine demand and hesitancy: a nationwide online survey in China;Lin;PLoS Neglected Trop. Dis.,2020
2. A cross-sectional study to determine factors affecting dental and medical students’ preference for virtual learning during the COVID-19 outbreak;Al-Azzam;Heliyon,2020
3. COVID-19: emergence, spread, possible treatments, and global burden;Keni;Front. Public Health,2020
4. COVID Live Update: 161,162,658 Cases and 3,347,560 Deaths from the Coronavirus - Worldometer, (n.d.). https://www.worldometers.info/coronavirus/(accessed May 13, 2021).
5. The global prevalence of depression, anxiety, stress, and, insomnia and its changes among health professionals during COVID-19 pandemic: a rapid systematic review and meta-analysis;Mahmud;Heliyon,2021