- American Medical Association www.ama-assn.org
- US Department of Health and Human Services www.hhs.gov
- American Heart Association www.heart.org
- American Geriatrics Society www.americangeriatrics.org
- American Physical Therapy Association www.apta.org
- National Institutes of Health www.nih.gov
- American Health Care Association www.ahcancal.org
- American Association of Post-Acute Care Nursing www.aapacn.org
