1. A safer place for patients: learning to improve patient safety;National Audit Office,2005
2. To err is human: building a safer health system;Kohn,1999
3. An organisation with a memory;Department of Health,2000
4. Building a safer NHS for patients: implementing an organisation with a memory;Department of Health,2001
5. Safety first, a report for patients, clinicians and healthcare managers;Department of Health,2005