1. https://web.archive.org/web/20180208124953/http://www.norden.org/en/fakta-om-norden. [Facts about the Nordic countries]. Swedish.
2. Statistics Sweden. https://www.scb.se/en/.
3. https://www.riksdagen.se/. Swedish.
4. https://skr.se/tjanster/englishpages.411.html.
5. National Board of Health and Welfare. https://www.socialstyrelsen.se/statistik-och-data/statistik/statistikamnen/halso-och-sjukvardspersonal/. Swedish.