- American Health Care Associationwww.ahcancal.org
- National Institutes of Healthwww.health.nih.gov
- U.S. Food & Drug Administrationwww.fda.gov
- World Health Organizationwww.who.int
- Centers for Disease Control and Preventionwww.cdc.gov
- American Psychiatric Nurses Association | APNAwww.apna.org
- PESIwww.pesi.com
- ENP Networkwww.enpnetwork.com
