1. Emergency department observation units;American College of Emergency Physicians Practice Management Committee;Ann Emerg Med,1988
2. Management of observation units;American College of Emergency Physicians Practice Management Committee;Ann Emerg Med,1988
3. Report on the preparedness of the emergency department for the care of children;American College of Emergency Physicians,1993
4. American Hospitals Association: Hospital Statistics (1996 data): Health Forum—1999. American Hospital Association, 1999 (Data also obtained from ACEP on emergency department utilization for 1973–1996)
5. Appendicitis;Anderson,1998