1. U.S. Census Bureau. Disability status 2000. Available at: http://www.census.gov/prod/2003pubs/c2kbr-17.pdf; 2003 Accessed 25.05.10.
2. Brault M. Americans with disabilities: 2005. Current population reports. 2008;70.
3. Houtenville AJ, Ruiz T. Annual disability statistics compendium: 2011. Durham, NH: University of New Hampshire, Institute on Disability. Available at: http://disabilitycompendium.org/pdf/Compendium2011.pdf; 2012 Accessed 06.07.12.
4. Day J. Population profile of the United States. US Census Bureau. Available at: http://www.census.gov/population/www/pop-profile/natproj.html; 2005 Accessed 05.09.11.
5. Brault W. Disability status and the characteristics of people in group quarters: a brief analysis of disability prevalence among the civilian noninstitutionalized and total population in the American community survey. Available at: http://www.census.gov/hhes/www/disability/GQdisability.pdf; 2008 Accessed 25.05.11.