1. Agency for Healthcare Research and Quality 2012 Emergency Severity Index (ESI): a triage tool for emergency department care http://www.ahrq.gov/research/esi/esihandbk.pdf
2. Australasian College for Emergency Medicine 2000 Guidelines for the implementation of the Australasian triage scale in emergency department http://www.acem.org.au/media/policies_and_guidelines/g24_implementation__ats.pdf
3. Australian Government Department of Health and Ageing 2013 Emergency Triage Education Kit https://www.health.gov.au/internet/main/publishing.nsf/Content/casemix-ED-Triage+Review+Fact+Sheet+Documents
4. Canadian Association of Emergency Physicians 2010 Canadian Emergency Department Triage and Acuity Scale Implementation guidelines - role of triage personnel http://www.cjem-online.ca/v1/n3/PaedCTAS/p3
5. Comparison of the Emergency Severity Index (ESI) and the Taiwan triage system in predicting resource utilization;Chi;J. Formos. Med. Assoc.,2006