American Physical Therapy Association — apta.org

National Resource Center on Supportive Housing — homemods.org

Home Modification Fall Prevention Center of Excellence — stopfalls.org

National Association of Home Builders — http://www.nahb.org

McKenzie Institute USA — mckenzieinstituteusa.org

The Jones Institute — jiscs.com

National Council on Aging — ncoa.org

American Association of Retired Persons — aarp.org

AARP Home Fit Guide — AARP Home Fit Guide

Houzz — houzz.com

IRS — irs.gov