1. Medicare Improvements for Patients and Providers Act of 2008. Medicare, Provisions Relating to Part B, Other Payment and Coverage Improvements. Pub L No. 110-275, §153(a) (2008).
2. USRDS 2006 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States,2006
3. USRDS 2007 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States,2007
4. USRDS 2008 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States,2008
5. USRDS 2009 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States,2009