title: Why the gray zone may shift within the fog.
authors.forename: Joshua A
authors.initials: JA
authors.lastname: Bloomstone
authors.forename: Karthik
authors.initials: K
authors.lastname: Raghunathan
authors.forename: William T
authors.initials: WT
authors.lastname: McGee
mesh_terms: D001794:Blood Pressure; D005260:Female; D005440:Fluid Therapy; D006801:Humans; D008297:Male; D012121:Respiration, Artificial