- National Hospice and Palliative Care Organizationwww.nhpco.org
- American Medical Associationwww.ama-assn.org
- American Health Care Associationwww.ahcancal.org
- American Public Health Associationwww.apha.org
- Mayo Clinicwww.mayoclinic.com
- Medicarewww.medicare.gov
