1. Hospital Emergency Departments: Crowded Conditions Vary Among Hospitals and Communities;Yamane,2003
2. Hospital-Based Emergency Care: At the Breaking Point,2006
3. Do you want to die?;Gibbs;Time,1990
4. Hospitals get orders to reduce crowding in emergency rooms;Barrero;New York Times,1989
5. Emergency crews worry as hospitals say, “No vacancy.”;Goldberg;New York Times,2000