title: The authors reply.
authors.affiliation: Department of Anesthesiology, Emergency and Critical Care Medicine and Karl Landsteiner Institute of Emergency Medicine, General Hospital, Wiener Neustadt, Austria; Department of Anesthesiology and Critical Care Medicine, AUVA Trauma Center, Salzburg, Austria.
authors.forename: Helmut
authors.initials: H
authors.lastname: Trimmel
authors.forename: Wolfgang G
authors.initials: WG
authors.lastname: Voelckel