- U.S. Department of Health and Human Serviceswww.hhs.gov
- American Health Care Associationwww.ahcancal.org
- California Department of Public Healthwww.cdph.ca.gov
- California Department of Agingwww.aging.ca.gov
- California Association for Health Services at Homewww.cahsah.org
- WebMDwww.webmd.com