- American Staffing Associationwww.americanstaffing.net
- U.S. Department of Laborwww.dol.gov
- National Institutes of Healthwww.health.nih.gov
- American Public Health Associationwww.apha.org
- American Medical Association www.ama-assn.org
- American Health Care Association www.ahcancal.org
- American Society for Pain Management Nursingwww.aspmn.org
