1. Assessing mandatory stay‐at‐home and business closure effects on the spread of COVID‐19;Bendavid E;Eur J Clin Invest,2021
2. Inferring the effectiveness of government interventions against COVID‐19;Brauner JM;Science,2020
3. Folkhälsomyndigheten(2020 November 25).COVID‐19 in children and Adolescents: A knowledge summary – V2. Retrieved January 11 2021.https://www.folkhalsomyndigheten.se/contentassets/1e5e09395b9a4f498ff635cdd2b1a888/covid‐19‐children‐adolescents.pdf(p. 6).
4. The Korea Herald. (2020 September 21).Students in greater Seoul return to school as virus slows learning gap widens. Retrieved January 19 2021http://m.koreaherald.com/amp/view.php?ud=20200921000340