References
- Institute of Medicine. The Future of Emergency Care in the United States. Washington, DC: National Academy Press, 2006.
- Evaluability Assessment of the Emergency Medical Services Program for the Office of Evaluation and Technical Analysis, Office of the Assistant Secretary for Planning and Evaluation and the Office of Planning, Evaluation and Legislation of the Health Services Administration, Department of Health and Human Services (Contract #HEW-10079–0042), 1980.