title: A tale of two intensive care units? All intensive care units are not the same!
authors.forename: S M
authors.initials: SM
authors.lastname: Ayres
authors.forename: A H
authors.initials: AH
authors.lastname: Combs
mesh_terms: D007362:Intensive Care Units / Q000458:organization & administration* / Q000706:statistics & numerical data; D014481:United States