1. The emergency medicine workforce: profile and projections;Reiter;J Emerg Med,2016
2. National study of the emergency physician workforce, 2008;Ginde;Ann Emerg Med,2009
3. Trends in midlevel provider utilization in emergency departments from 1997 to 2006;Menchine;Acad Emerg Med,2009
4. Department of Health and Human Services; Centers for Medicare & Medicaid Services. Medicare information for advanced practice registered nurses, anesthesiologist assistants, and physician assistants. Medicare Learning Network. Available at: https://www.cms.gov/Outreach-and-Education/Medicare-Learning-Network-MLN/MLNProducts/Downloads/Medicare-Information-for-APRNs-AAs-PAs-Booklet-ICN-901623.pdf. Accessed July 4, 2017.
5. Identification of emergency department visits in Medicare administrative claims: approaches and implications;Venkatesh;Acad Emerg Med,2017