- American Cancer Societywww.cancer.org
- American Health Care Associationwww.ahcancal.org
- American Medical Associationwww.ama-assn.org
- American Public Health Associationwww.apha.org
- California Association for Health Services at Homewww.cahsah.org
- California Home Health Care Agencies – HomeHealthCareAgencies.comwww.homehealthcareagencies.com
- Caregiving – National Institute on Agingwww.nia.nih.gov
- Centers for Medicare & Medicaid Services (CMS)www.cms.gov
- National Institutes of Healthwww.health.nih.gov
- Medicarewww.medicare.gov
- Mayo Clinicwww.mayoclinic.com