title: Improving emergency medical services.
mesh_terms: D000552:Ambulances / Q000592:standards / Q000600:supply & distribution; D004632:Emergency Medical Services; D004636:Emergency Service, Hospital; D007883:Legislation, Medical; D008404:Massachusetts; D011787:Quality of Health Care; D014187:Transportation of Patients; D014481:United States; D000078329:Workforce