1. Prevalence of disabilities and associated health conditions among adults—United States;McNeil;MMWR Morb Mort Wkly Rep,1999
2. Cooper RA, Cooper R. Trends and issues in wheeled mobility technologies. In: Space Requirements for Wheeled Mobility Workshop: An International Workshop; 2003 Oct 9-11; Buffalo (NY). Available at: http://www.ap.buffalo.edu/idea/Space%20Workshop/index2.asp. Accessed Oct 25, 2007.
3. Enabling America: assessing the role of rehabilitation science and engineering,1997
4. LaPlante LM. Demographics of wheeled mobility device users. In: Space Requirements for Wheeled Mobility Workshop: An International Workshop; 2003 Oct 9-11; Buffalo (NY). Available at: http://www.ap.buffalo.edu/idea/Space%20Workshop/index2.asp. Accessed Oct 25, 2007.
5. American housing survey for the United States, supplement,1995