1. Responding to Emergency Department Crowding: A Guidebook for Chapters;ACEP Crowding Resources Task Force,2002
2. Emergency department crowding: a point in time;Schneider;Ann Emerg Med,2003
3. A conceptual model of emergency department crowding;Asplin;Ann Emerg Med,2003
4. Chaos: Making a New Science;Gleick,1987
5. Hospital emergency departments, crowded conditions vary among hospitals and communities [GAO-03-460];General Accounting Office,2003