title: The "gray zone approach": assessing the accuracy of pulse pressure variation without considering the prevalence?
authors.forename: Piet A H
authors.initials: PA
authors.lastname: Wyffels
authors.forename: Patrick F
authors.initials: PF
authors.lastname: Wouters
mesh_terms: D001794:Blood Pressure; D005260:Female; D005440:Fluid Therapy; D006801:Humans; D008297:Male; D012121:Respiration, Artificial