1Anaesthesia and Intensive Care, St George’s Hospital and Medical School, London, SW17 0QT UK
2Institute of Anaesthesiology and Intensive Care Medicine, Triemli City Hospital Zurich, Birmensdorferstrasse 497, 8063 Zurich, Switzerland
3Hôpitaux universitaires Paris-Sud, Hôpital de Bicêtre, Service de réanimation médicale, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France
4Faculté de médecine Paris-Sud, EA4533, University Paris-Sud, 63, rue Gabriel Péri, 94270 Le Kremlin-Bicêtre, France
5Intensive Care Units, Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Helsinki University Hospital, Helsinki, Finland
6Department of Anaesthesiology and Intensive Therapy, University of Szeged, Szeged, Hungary
7Department of Anesthesia and Intensive Care Medicine, University Hospital, Medical School, University of Udine, P.le S. Maria della Misericordia, 33100 Udine, Italy
8Department of Anesthesiology and Surgical Critical Care, Hospital Universitario Rio Hortega, Valladolid, Spain
9Critical Care Center, CIBER Enfermedades Respiratorias, Sabadell Hospital, Corporació Sanitaria Universitaria Parc Tauli, Autonomous University of Barcelona, Barcelona, Spain
10Deenanath Mangeshkar Hospital and Research Center, Pune, 411004 India
11Department of Anesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Charité Campus Mitte, Campus Virchow Klinikum, Charitéplatz 1, 10117 Berlin, Germany
12Service des Réanimations, CHU Nîmes, Place du Professeur Robert Debré, 30029 Nîmes cedex 9, France
13Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
14Department of Intensive Care, CHIREC Hospitals, Brussels, Belgium