1. American Society for Healthcare Risk Management (www.ashrm.org/ashrm/about/index/shtml/?page=index).
2. Risk management handbook for health care organizations;Carroll,2009
3. Error reduction in health care: a systems approach to improving patient safety;Spath,2011
4. Understanding patient safety;Wachter,2012
5. Patient risk in anesthesia: probabilistic risk analysis, management effects and improvements;Pate-Cornell;Ann Operations Res,1997