1. Nonurgent use of hospital emergency departments;Cunningham,2011
2. Emergency department visits for nonurgent conditions: systematic literature review;Uscher-Pines;Am J Manag Care,2013
3. Epidemiology of eye-related emergency department visits;Channa;JAMA Ophthalmol,2016
4. National hospital ambulatory medical care survey: 2010 emergency department summary tables,2013
5. A matter of urgency: reducing emergency department overuse,2010