- American Physical Therapy Associationwww.apta.org
- American Public Health Associationwww.apha.org
- U.S. Department of Health & Human Serviceswww.hhs.gov
- American Health Care Associationwww.ahcancal.org
- American Medical Associationwww.ama-assn.org
- International Council of Nurseswww.icn.ch
