1. McCaig LF, Burt CW. National Hospital Ambulatory Medical Care Survey: 2003 emergency department summary [National Center for Health Statistics Web site]. Available at: http://www.cdc.gov/nchs/about/major/ahcd/ercharts.htm. Accessed October 11, 2005.
2. To Err is Human: Building a Safer Health System,1999
3. Crossing the Quality Chasm: A New Health System for the 21st Century,2004
4. Patient Safety: Achieving a New Standard for Care,2004
5. IOM report: patient safety: achieving a new standard for care;Acad Emerg Med,2005