Donaldson MS, Corrigan JM, Kohn LT. To err is human: building a safer health system: National Academies Press; 2000.

Schenkel S. Promoting patient safety and preventing medical error in emergency departments. Academic Emergency Medicine. 2000;7(11):1204-22.

Sandars J, Esmail A. The frequency and nature of medical error in primary care: understanding the diversity across studies. Family practice. 2003;20(3):231-6.

Schwappach DL, Koeck CM. What makes an error unacceptable? A factorial survey on the disclosure of medical errors. International Journal for Quality in Health Care. 2004;16(4):317-26.

Tamuz M, Thomas E, Franchois K. Defining and classifying medical error: lessons for patient safety reporting systems. BMJ Quality & Safety. 2004;13(1):13-20.