1. Audit Commission 2012 Right Data, Right Payment: Annual Report on the Payment by Results Data Assurance Programme 2011/12
2. Charlesworth , A. Hawkins , L. Marshall , L. 2014 NHS Payment Reform: Lessons from the Past and Directions for the Future http://www.nuffieldtrust.org.uk/sites/files/nuffield/publication/140220_payment_reform_policy_response.pdf
3. Socio-economic inequalities in health care in England;Cookson;Fiscal Studies,2016
4. How do hospitals respond to price changes?;Dafny;American Economic Review,2005
5. Deloitte LLP 2014 Reference Cost Data Quality https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/317571/Supporting_document_B_-_Deloitte_Reference_Cost_Data_Quality_for_publication8e14.pdf