1. Hospital Admissions That Began in the Emergency Department, 2003;Owens,2006
2. Table 90 in Health, United States, 2007, With Chartbook on Trends in the Health of Americans,2007
3. Hospital-Based Emergency Care: At the Breaking Point,2007
4. A profile of US emergency departments in 2001;Sullivan;Ann Emerg Med.,2006
5. The National Report Card on the State of Emergency Medicine,2008