title: The trouble with studying bundles.
authors.forename: Shira
authors.initials: S
authors.lastname: Doron
authors.forename: Stanley A
authors.initials: SA
authors.lastname: Nasraway
mesh_terms: D005260:Female; D006801:Humans; D017053:Infection Control / Q000379:methods*; D007362:Intensive Care Units / Q000458:organization & administration*; D008297:Male; D053717:Pneumonia, Ventilator-Associated / Q000517:prevention & control*; D058996:Quality Improvement / Q000458:organization & administration*