1. Social Security Administration. Compilation of the Social Security laws: state plans for medical assistance. Available at: https://www.ssa.gov/OP_Home/ssact/title19/1902.htm. Accessed October 18, 2015.
2. Synder L, Rudowitz R. Medicaid financing: how does it work and what are the implications? Kaiser Family Foundation. Available at: http://kff.org/medicaid/issue-brief/medicaid-financing-how-does-it-work-and-what-are-the-implications. Accessed October 18, 2015.
3. Centers for Medicare & Medicaid Services. Physician fee schedule. Baltimore, MD. Available at: https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/PhysicianFeeSched/index.html?redirect=/physicianfeesched. Accessed December 16, 2015.
4. Centers for Medicare & Medicaid Services. CMS Physician Fee Schedule- Allowed Charges File. Available at: https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/PhysicianFeeSched/index.html. Accessed December 16, 2015.
5. Centers for Medicare & Medicaid Services. PFS carrier specific files. Baltimore, MD. Available at: https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/PhysicianFeeSched/index.html. Accessed October 25, 2015.