1. American College of Emergency Physicians, ACEP. (1999). Ambulance diversion policy statement.
http://www.acep.org/Clinical---Practice-Management/Ambulance-Diversion/
2. American College of Emergency Physicians, ACEP. (2002). Responding to emergency department crowding: A guidebook for chapters. Dallas, TX: American College of Emergency Physicians, ACEP.
3. Belson, D., Hall, R., Murali, P., & Dessouky, M. (2004). Collaborative to improve patient flow at Los Angeles County/University of Southern California Hospital (Final Report). Epstein Department of Industrial and Systems Engineering.
4. Bindman, A. B., Grumbach, K., Keane, D., Rauch, L., & Luce, J. M. (1991). Consequences of queueing for care at a public hospital emergency department. Journal of the American Medical Association, 266, 1091–1096.
5. Buesching, D. P., Jablonowski, A., & Vesta, E. (1985). Inappropriate emergency department visits. Annals of Emergency Medicine, 14, 672–676.