- American Heart Associationwww.americanheart.org
- American Medical Association www.ama-assn.org
- American Public Health Association www.apha.org
- National Institutes of Health www.health.nih.gov
- The American Geriatrics Society www.americangeriatrics.org
- CDC www.cdc.gov
- Mayo Clinic www.mayoclinic.org
- Minnesota Department of Health www.health.state.mn.us
