1. Where Americans get acute care: increasingly, it’s not at their doctor’s office;Pitts;Health Aff (Millwood),2010
2. The growing role of emergency departments in hospital admissions;Schuur;N Engl J Med,2012
3. The Evolving Role of Emergency Departments in the United States;Morganti,2013
4. Emergency care: then, now, and next;Kellermann;Health Aff (Millwood),2013
5. Williams M, Pfeffer M; Abaris Group. Freestanding emergency departments: do they have a role in California? California HealthCare Foundation. July 2009. Available at: http://www.chcf.org/∼/media/MEDIA%20LIBRARY%20Files/PDF/PDF%20F/PDF%20FreestandingEmergencyDepartmentsIB.pdf. Accessed March 24, 2016.