1. Smith J Building a Safer NHS for Patients: Improving Medication Safety. Department of Health 2004 http://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_4071443
2. The World Health Organization Patient Safety. Launch of Nine Patient Safety Solutions http://www.who.int/patientsafety/events/07/02_05_2007/en/index.html
3. NHSLA Annual Report and Accounts HMSO 2007 http://www.nhsla.com/NR/rdonlyres/83BCFCEF-81F7-4FB7-9A46-1499F03188DF/0/NHSLAAnnualReportandAccounts2007.pdf
4. Litigation related to anaesthesia: an analysis of claims against the NHS in England 1995-2007;Cook;Anaesthesia,2009
5. National Coordinating Council for Medication Error Reporting and Prevention About Medication Errors. Taxonomy of Medication Errors http://www.nccmerp.org/pdf/taxo2001-07-31.pdf