- American Health Care Associationwww.ahcancal.org
- American Public Health Associationwww.apha.org
- Mobility Internationalwww.miusa.org
- U.S. Department of Health & Human Services www.hhs.gov
- American Medical Associationwww.ama-assn.org
- American Medical Associationwww.ama-assn.org
