1. National Patent Safety Agency Never Events Annual Report 2009/10 2010 http://www.nrls.npsa.nhs.uk/resources/?entryid45=83319
2. Achieving the National Quality Forum's “Never Events”. Prevention of wrong site, wrong procedure, and wrong patient operations;Michaels;Annals of Surgery,2007
3. Department of Health The “never events” list for 2011/12 2011 https://www.gov.uk/government/publications/the-never-events-list-for-2011-12
4. Monitor NHS foundation trusts found in significant breach of their authorisation (Cambridge University Hospitals NHS Foundation Trust) 2012 http://webarchive.nationalarchives.gov.uk/20140106173514/http://monitor-nhsft.gov.uk/about-your-local-nhs-foundation-trust/regulatory-action/nhs-foundation-trusts-found-significant-brea
5. The Guardian NHS regulator intervenes after botched operations at Cambridge hospitals 2012 http://www.theguardian.com/society/2012/nov/23/nhs-botched-operations-cambridge-hospitals