title: Comprehensive regional trauma/emergency medical services (EMS) delivery systems: the United States experience.
mesh_terms: D004632:Emergency Medical Services / Q000458:organization & administration*; D006801:Humans; D010348:Patient Care Team; D012040:Regional Health Planning / Q000639:trends*; D014187:Transportation of Patients; D014193:Trauma Centers / Q000458:organization & administration*; D014218:Triage; D014481:United States; D014947:Wounds and Injuries / Q000628:therapy