May I have the envelope please? (the idea of applying the aviation concept of performance envelopes)
http://www.ihi.org/IHI/Topics/PatientSafety/SafetyGeneral/Literature/MayIHavetheEnvelopePlease.htm
Reducing VAP for long-term mechanical ventilation patients using the ventilator bundle
http://www.ihi.org/IHI/Topics/CriticalCare/IntensiveCare/ImprovementStories/ReducingVAPLongTermMechanicalVentilationVentBundle.htm