title: EMS in America's most populous cities.
authors.forename: T
authors.initials: T
authors.lastname: Mayfield
mesh_terms: D000552:Ambulances / Q000706:statistics & numerical data; D004632:Emergency Medical Services / Q000592:standards / Q000706:statistics & numerical data*; D004634:Emergency Medical Technicians; D019538:Health Care Surveys; D013996:Time and Motion Studies; D017749:Total Quality Management; D014481:United States; D019037:Urban Health Services / Q000592:standards / Q000706:statistics & numerical data*