1. Victorian Ambulance Cardiac Arrest Registry. Victorian Ambulance Cardiac Arrest Registry: annual report 2011-2012. http://www.ambulance.vic.gov.au/Media/docs/vacar-annual-report2011-12-910ad17b-3f51-4418-8bf7-351beb8f9f84-0.pdf. Published 2012. Accessed October 16, 2013.
2. Minnesota Department of Health. A quiet crisis: Minnesota’s rural ambulance service at risk. www.health.state.mn.us/divs/orhpc/pubs/ambulancerpt.pdf. Published 2002. Accessed October 14, 2013.
3. Centers for Disease Control and Prevention. 2004-2005 nursing assistant tables—estimates. http://www.cdc.gov/nchs/nnhs/nursing_assistant_tables_estimates.htm. Published 2005. Accessed October 14, 2013.