1. Deficit Reduction Act of 2005, Pub. L. No. 109-171, 120 Stat. 4 (8 February 2006).
2. Self-declaration of U.S. Citizenship for Medicaid, Department of Health and Human Services Office of Inspector General. July 2005. http://oig.hhs.gov/oei/reports/oei-02-03-00190.pdf . Accessed July 3, 2008.
3. Haber, S. G., Khatutsky, G., & Mitchell, J. B. (2000). Covering uninsured adults through Medicaid: Lessons from the Oregon Health Plan. Health Care Financing Review, 22, 119–135.
4. Ross, D. (2007). New Medicaid citizenship documentation requirement is taking a toll: states report enrollment is down and administrative costs are up. Center on Budget and Policy Priorities. March 2007. https://www.cbpp.org/cms/index.cfm?fa=view&id=1090 . Accessed August 15, 2007.
5. New Medicaid citizenship documentation requirement: A brief overview. Center on Budget and Policy Priorities: 2006. https://www.cbpp.org/cms/index.cfm?fa=view&id=198 . Accessed August 27, 2009.