- American Health Care Association www.ashe.org
- Home Care Association of America www.hcaoa.org
- National Association for Home Care & Hospice www.nahc.org
- American Public Health Association www.apha.org
- American Staffing Association www.americanstaffing.net
- National Institutes of Health www.nih.gov
- HealthinAging.org www.healthinaging.org
- MedlinePlus www.medlineplus.gov