7 Department of Intensive Care, Medical Center Leeuwarden, Leeuwarden, Netherlands.6 Department of Intensive Care, Academic Medical Center, Amsterdam, Netherlands.5 Lund University, Helsingborg Hospital, Department of Clinical Sciences, Division of Anaesthesiology and Intensive Care, Lund, Sweden.4 Lund University, Skane University Hospital, Department of Clinical Sciences, Division of Anaesthesiology and Intensive Care, Lund, Sweden.

Electronic address: 2 Department of Anaesthesia and Intensive Care, Azienda Ospedaliera G.