- American Health Care Associationwww.ahcancal.org
- American Medical Associationwww.ama-assn.org
- American Physical Therapy Associationwww.apta.org
- American Public Health Associationwww.apha.org
- American Society for Pain Management Nursingwww.aspmn.org
- National Institutes of Healthhealth.nih.gov
