1. Department of Anaesthesia and Intensive Care Medicine, Charité — Universitätsmedizin Berlin Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany
2. Department of Anaesthesia, Beaumont Hospital, Dublin, Ireland
3. First Operating Unit of Anaesthesia and Resuscitation, Luigi Sacco Hospital, Milan, Italy
4. Department of Anaesthesia and Pain Therapy, University Hospital Maastricht, Maastricht, The Netherlands
5. Department of Anaesthesia and Resuscitation, Hospital Clinic “Lozano Blesa”, University of Zaragoza, Zaragoza, Spain