- American Health Care Association www.ahcancal.org
- American Physical Therapy Association www.apta.org
- American Public Health Associationwww.apha.org
- Centers for Medicare & Medicaid Services (CMS) www.cms.gov
- Medicare www.medicare.gov
- National Institutes of Health www.nih.gov
- The American Geriatrics Society www.americangeriatrics.org
- U.S. Department of Health & Human Services www.hhs.gov
