1. National Health Expenditures 2011 Highlights;CMS H,2013
2. National Health Expenditure Projections 2011-2021;CMS D,2012
3. Health care reform and cost control;Orszag;N Engl J Med,2010
4. What is value in health care?;Porter;N Engl J Med,2010
5. Burden of musculoskeletal diseases in the United States: prevalence, societal, and economic cost;Jacobs,2008