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2. Small Area Variations in Health Care Delivery
3. Congressional Budget Office.Research on the Comparative Effectiveness of Medical Treatments. Congressional Budget Office, Washington, DC, USA (2007).
4. Federal Coordinating Council for Comparative Effectiveness Research.Report to the President and Congress. US Department of Health and Human Services, Washington, DC, USA (2009).
5. Institute of Medicine of the National Academies.Initial National Priorities for Comparative Effectiveness Research. National Academies Press, Washington, DC, USA (2009).