
https://dgap.org/system/files/article_pdfs/DPC%20-%20fully%20study%202023%20-%20final.pdf

https://openmarketsinstitute.org/wp-content/uploads/2020/04/OMI-House-Letter-4.17.20.pdf

https://www.nuffieldtrust.org.uk/news-item/how-has-the-role-of-the-private-sector-changed-in-uk-health-care