- American Public Health Associationwww.apha.org
- American Staffing Association www.americanstaffing.net
- U.S. Department of Health & Human Services www.hhs.gov
- Health Finderwww.healthfinder.gov
- Home Care Association of America www.hcaoa.org
- National Institutes of Health www.health.nih.gov
- U.S. Bureau of Labor Statistics www.bls.gov
