- American Heart Associationwww.americanheart.org
- Centers for Medicare & Medicaid Services (CMS)www.cms.gov
- American Physical Therapy Associationwww.apta.org
- National Institutes of Healthwww.health.nih.gov
- The American Geriatrics Societywww.americangeriatrics.org
- U.S. Department of Health & Human Serviceswww.hhs.gov
