Horwitz, L.I., et al. (2010) US Emergency Department Performance on Wait Time and Length of Visit. Annals of Emergency Medicine, 55, 133-141. http://dx.doi.org/10.1016/j.annemergmed.2009.07.023
 Davis, B., et al. (1995) Factors Affecting ED Length-of-Stay in Surgical Critical Care Patients. American Journal of Emergency Medicine, 13, 495-500. http://dx.doi.org/10.1016/0735-6757(95)90155-8
 Krall, S.P., et al. (2014) Hospital Factors Impact Variation in Emergency Department Length of Stay More than Physician Factors. Western Journal of Emergency Medicine, 15, 158-164. http://dx.doi.org/10.5811/westjem.2013.12.6860
 Parker, B.T. and Marco, C. (2014) Emergency Department Length of Stay: Accuracy of Patient Estimates. Western Journal of Emergency Medicine, 15, 170-175. http://dx.doi.org/10.5811/westjem.2013.9.15816
 Locker, T., et al. (2005) Targets and Moving Goal Posts: Changes in Waiting Times in a UK Emergency Department. Emergency Medicine Journal, 22, 710-714. http://dx.doi.org/10.1136/emj.2004.019042
 Beveridge, R., Clarke, B., Janes, L., Savage, N., Thompson, J. and Dodd, G. (1999) Canadian Emergency Department Triage and Acuity Scale: Implementation Guidelines. Canadian Journal of Emergency Medicine, 1, S1-S24.
 National Emergency Departments Advisory Group (2014) A Quality Framework and Suite of Quality Measures for the Emergency Department Phase of Acute Patient Care in New Zealand. Ministry of Health, Wellington.
 Elkum, N.B., et al. (2011) Canadian Emergency Department Triage and Acuity Scale: Implementation in a Tertiary Care Center in Saudi Arabia. BMC Emergency Medicine, 11, 3. http://dx.doi.org/10.1186/1471-227X-11-3
 Alyasin, A. and Douglas, C. (2014) Reasons for Non-Urgent Presentations to the Emergency Department in Saudi Arabia. International Emergency Nursing, 22, 220-225. http://dx.doi.org/10.1016/j.ienj.2014.03.001
 Stock, L.M., et al. (1994) Patients Who Leave Emergency Departments without Being Seen by a Physician: Magnitude of the Problem in Los Angeles County. Annals of Emergency Medicine, 23, 294-298. http://dx.doi.org/10.1016/S0196-0644(94)70043-5