[1] Copenhagen Univ Hosp, Dept Intens Care, Rigshosp, Copenhagen, Denmark
[2] Univ Paris Cite, CNRS, UMR8104,Inst Cochin,INSERM U1016, Med Intens & Reanimat,Hop Cochin,AP HP, Paris, France
[3] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark
[4] Univ Paris Cite, Med Intens & Reanimat, Hop St Louis, AP HP, Paris, France
[5] Glasgow Royal Infirm, Dept Intens Care, Glasgow, Lanark, Scotland
[6] Penn State Univ, Div Pulm & Crit Care, Coll Med, Hershey, PA USA
[7] Oslo Univ Hosp, Div Emergencies & Crit Care, Dept Anaesthesia & Intens Care Med, Rikshosp, Oslo, Norway
[8] Mem Sloan Kettering Canc Ctr, Dept Anesthesiol & Crit Care Med, Crit Care Med Serv, 1275 York Ave, New York, NY 10021 USA
[9] Weill Cornell Med Coll, Dept Anesthesiol, New York, NY USA
[10] Univ Barcelona, Hosp Clin Barcelona, Med Intens Care Unit, IDIBAPS, Barcelona, Spain
[11] Sao Francisco Xavier Hosp, Dept Intens Care, CHLO, Lisbon, Portugal
[12] Univ Nova Lisboa, Nova Med Sch, CHRC, Lisbon, Portugal
[13] Odense Univ Hosp, Ctr Clin Epidemiol & Res Unit Clin Epidemiol, Odense, Denmark
[14] Kings Coll Hosp NHS Fdn Trust, Dept Crit Care, London, England
[15] Univ Cologne, Dept Internal Med, Fac Med, Cologne, Germany
[16] Univ Cologne, Univ Hosp Cologne, Cologne, Germany
[17] Univ Duisburg Essen, Univ Hosp Essen, Dept Hematol & Stem Cell Transplantat, Essen, Germany
[18] Skane Univ Hosp, Dept Intens & Perioperat Care, Lund, Sweden
[19] Lund Univ, Dept Clin Sci, Lund, Sweden
[20] Univ Helsinki, Dept Perioperat & Intens Care Med, Helsinki, Finland
[21] Helsinki Univ Hosp, Helsinki, Finland
[22] Tampere Univ Hosp, Dept Anaesthesiol & Intens Care, Tampere, Finland
[23] Tampere Univ, Tampere, Finland
[24] Aalborg Univ Hosp, Dept Anaesthesia & Intens Care, Aalborg, Denmark
[25] Odense Univ Hosp, Dept Anaesthesiol & Intens Care, Odense, Denmark
[26] Aarhus Univ Hosp, Dept Anaesthesiol & Intens Care, Aarhus, Denmark
[27] Hopitaux Univ Henri Mondor, AP HP, Serv Med Intens Reanimat, Paris, France
[28] Univ Nantes, Med Intens Reanimat, CHU Nantes, Nantes, France
[29] Elizabeth Univ Hosp, Crit Care Unit, Glasgow, Queen, Scotland
[30] Hop Avicenne, AP HP, Serv Reanimat Medicochirurg, Paris, France
[31] Hop Louis Mourier, AP HP, Med Intens Reanimat, DMU ESPRIT, Paris, France
[32] Univ Paris Cite, Inst Necker Enfants Malades, INSERM, UMR S1151,CNRS,UMR S8253, Paris, France
[33] Sorbonne Univ, Hop St Antoine, AP HP, Serv Med Intens Reanimat, Paris, France
[34] Holbaek Cent Hosp, Dept Intens Care, Holbaek, Denmark
[35] Hosp Gen Granollers, Dept Intens Care, Barcelona, Spain
[36] Vall dHebron Hosp Univ, Intens Care Dept, Barcelona, Spain
[37] Vall dHebron Barcelona Hosp Campus, Vall dHebron Inst Recerca VHIR, SODIR Res Grp, Barcelona, Spain
[38] Sorbonne Univ, Hop Pitie Salpetriere, AP HP, Serv Med Intens Reanimat, Paris, France
[39] Sorbonne Univ, Serv Med Intens Reanimat, Hop Tenon, AP HP,Ctr Rech Saint Antoine UMRS 938,INSERM, Paris, France
[40] Copenhagen Univ Hosp Bispebjerg & Frederiksberg, Dept Anaesthesia & Intens Care, Copenhagen, Denmark
[41] Copenhagen Univ Hosp Herlev & Gentofte, Dept Intens Care, Herlev, Denmark
[42] Haukeland Hosp, Dept Anaesthesia & Intens Care, Bergen, Norway
[43] Univ Bergen, Fac Med, Bergen, Norway
[44] Zealand Univ Hosp Roskilde, Dept Intens Care, Roskilde, Denmark
[45] Oslo Univ Hosp, Dept Acute Med, Oslo, Norway
[46] Univ Oslo, Inst Clin Med, Oslo, Norway
[47] Stavanger Univ Hosp, Dept Intens Care, Stavanger, Norway
[48] Copenhagen Univ Hosp North Zealand, Dept Anaesthesiol & Intens Care, Hillerod, Denmark
[49] St Olavs Univ Hosp, Dept Intens Care Med, Trondheim, Norway
[50] Norwegian Univ Technol & Sci, Dept Circulat & Med Imaging, Trondheim, Norway