title: The Department of Homeland Security's role in enhancing and implementing the response to active shooter and intentional mass casualty events.
authors.forename: Kathryn H
authors.initials: KH
authors.lastname: Brinsfield
authors.forename: Ernest
authors.initials: E
authors.lastname: Mitchell
mesh_terms: D004632:Emergency Medical Services / Q000592:standards*; D006077:Government Agencies; D054527:Mass Casualty Incidents; D058996:Quality Improvement; D014481:United States