1. Department of Health. An organisation with a memory: report of an expert advisory group on learning from adverse events in the NHS. London: The Stationery Office; 2000.
2. National Health Service Litigation Authority. Risk management standards for acute trusts, primary care trusts and independent sector providers of NHS care. London: NHSLA; 2009.
3. Schneider A. How quality improvement in health care can help to achieve the millenium development goals. Bull World Health Organ. 2006;84:257–336.
4. Lewis GE, Cantwell R, Clutton-Brock T, Cooper G. Saving Mothers' Lives: Reviewing maternal deaths to make motherhood safer: 2006-2008. The Eighth Report of the Confidential Enquiries into Maternal Deaths in the United Kingdom. BJOG. 2011;118 Suppl 1:1–203.
5. Knight M, Lindquist A. The UK obstetric surveillance system: impact on patient safety. Best Pract Res Clin Obstet Gynaecol. 2013;27:621–30.