https://www.brookings.edu/wp-content/uploads/2017/09/4_alganetal.pdf
https://www.nuffieldtrust.org.uk/files/2020-07/resuming-health-services-web.pdf
https://www.g20.org/gipfeldokumente/G20-leaders-declaration.pdf
https://www.swiss-solidarity.org/fileadmin/user_upload/Qui_sommes-nous/Publications/EN/Annual_reports/2024_Annual_Report.pdf