title: Emergency department categorization: concerns.
authors.forename: A
authors.initials: A
authors.lastname: Sacchetti
mesh_terms: D004635:Emergency Medicine; D004636:Emergency Service, Hospital / Q000145:classification* / Q000592:standards*; D006801:Humans; D011787:Quality of Health Care / Q000592:standards*; D012955:Societies, Medical; D014481:United States