1. ASHP standard definition of a medication error;American Society of Hospital Pharmacists;American Journal of Hospital Pharmacy,1982
2. A systems approach to the reduction of medication error on the hospital ward;Anderson;Journal of Advanced Nursing,2001
3. Drug errors, qualitative research and some reflections on ethics;Armitage;Journal of Clinical Nursing,2005
4. Australian Council for Safety and Quality in Healthcare 2002 Second national report on patient safety: Improving medication safety http://www.safetyandquality.org/med_saf_rept.pdf