1. U.S. Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Injury Prevention and Control. WISQARS: Web-based injury statistics query and reporting system: leading causes of death reports, 1999–2006. Atlanta, GA: CDC, 2009. Available at: http://webappa.cdc.gov/sasweb/ncipc/leadcaus10.html. Accessed April 30, 2010.
2. U.S. Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Injury Prevention and Control. WISQARS: Web-based injury statistics query and reporting system: injury mortality reports, 1999–2006. Atlanta, GA: CDC, 2009. Available at: http://webappa.cdc.gov/sasweb/ncipc/mortrate10_sy.html. Accessed April 30, 2010.
3. Impact of a Trauma System on Outcome of Severely Injured Patients
4. Comprehensive regional trauma/Emergency Medical Services (EMS) delivery systems: The United States experience
5. The evolution of air transport systems: A pictorial review