1. Changes in stress, anxiety, and depression levels of subscribers to a daily supportive text message program (Text4Hope) during the COVID-19 pandemic: cross-sectional survey study;Agyapong;J. Med. Internet Res. Ment. Health,2020
2. Policy stringency and mental health during the COVID-19 pandemic: a longitudinal analysis of data from 15 countries;Aknin;Lancet Public Health,2022
3. Impacts of the COVID-19 pandemic on life of higher education students: a global perspective;Aristovnik;Sustainability,2020
4. Bank of Canada. (2022). COVID-19 Stringency Index. Retrieved from: https://www.bankofcanada.ca/markets/market-operations-liquidity-provision/covid-19-actions-support-economy-financial-system/covid-19-stringency-index/.
5. Online-learning due to COVID-19 improved mental health among medical students;Bolatov;Med. Sci. Educ.,2021