1. United States Renal Data System : Medicare expenditures for persons with ESRD. In: 2017 USRDS Annual Data Report: Epidemiology of Kidney Disease in the United States, Bethesda, MD, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 2017. Available at: http://www.usrds.org. Accessed February 8, 2018
2. United States Renal Data System : Medicare expenditures for persons with ESRD. In: 2015 USRDS Annual Data Report: Epidemiology of kidney disease in the United States, Bethesda, MD, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 2015. Available at: http://www.usrds.org. Accessed February 8, 2018
3. United States Renal Data System : Incidence, prevalence, patient characteristics, and treatment modalities. In: 2015 USRDS Annual Data Report: Epidemiology of kidney disease in the United States, Bethesda, MD, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 2015. Available at: http://www.usrds.org. Accessed February 8, 2018
4. United States Census Bureau : Older People Projected to Outnumber Children for First Time in U.S. History, 2018. Available at: https://www.census.gov/newsroom/press-releases/2018/cb18-41-population-projections.html. Accessed May 1, 2018
5. A Simplex Method for Function Minimization