- American Health Care Association www.ahcancal.org
- American Medical Association www.ama-assn.org
- Better Business Bureau Business Review www.bbb.org
- Center for Medicare and Medicaid Serviceswww.cms.gov
- Community Health and Accreditation Partner www.chapinc.org
- International Council of Nurses www.icn.ch
- MedicineNet – Health and Medical Information Produced by Doctors www.medicinenet.com
- National Institutes of Health www.health.nih.gov
- World Health Organization www.who.int
