1. National Health Service Health Service Circular 1998/113: A first class service consultation document on quality in the new NHS http://webarchive.nationalarchives.gov.uk/20120503184720/http://www.dh.gov.uk/prod_consum_dh/groups/dh_digitalassets/@dh/@en/documents/digitalasset/dh_4011833.pdf
2. NCEPOD Sepsis 2015 https://www.youtube.com/watch?v=45HCtKC5tz0
3. Development and validation of the Surgical Outcome Risk Tool (SORT);Protopapa;British Journal of Surgery,2014
4. NCEPOD The impact of NCEPOD reports 2013 http://www.ncepod.org.uk/pdf/publications/TheImpactOfNCEPODreports2013.pdf