1. Centers for Disease Control and Prevention. Cost of hospital discharges with common hospital operating room procedures in nonfederal community hospitals, by age and selected principle procedure: United States, selected years 2000-2012. http://www.cdc.gov/nchs/data/hus/hus14.pdf#105. [accessed 26.10.15].
2. Centers for Disease Control and Prevention. Gross domestic product, national health expenditures, per capita amounts, percent distribution, and average annual percent change: United States, selected years 1960-2013. http://www.cdc.gov/nchs/data/hus/2014/102.pdf. [accessed 26.10.15].
3. Centers for Medicare & Medicaid Services. Comprehensive Care for Joint Replacement Model. https://innovation.cms.gov/initiatives/ccjr/index.html. [accessed 26.10.15].
4. Hospital economics of primary total knee arthroplasty at a teaching hospital;Healy;Clin Orthop Relat Res,2011
5. Complications, mortality, and costs for outpatient and short-stay total knee arthroplasty patients in comparison to standard-stay patients;Lovald;J Arthroplasty,2014