[1] Copenhagen Univ Hosp, Rigshosp, Dept Intens Care, 4131,Blegdamsvej 9, DK-2100 Copenhagen, Denmark
[2] Copenhagen Univ Hosp, Rigshosp, Dept Cardiol, Copenhagen, Denmark
[3] Oslo Univ Hosp, Rikshosp, Dept Anaesthesiol, Div Emergencies & Crit Care, Oslo, Norway
[4] Peking Univ Peoples Hosp, Dept Crit Care Med, Beijing, Peoples R China
[5] Wellington Hosp, Intens Care Unit, Wellington, New Zealand
[6] Med Res Inst New Zealand, Wellington, New Zealand
[7] Monash Univ, Australian & New Zealand Intens Care Res Ctr, Sch Publ Hlth & Prevent Med, Dept Epidemiol & Prevent Med, Melbourne, Vic, Australia
[8] Univ New South Wales, Liverpool Hosp, South Western Sydney Local Hlth Dist, Dept Intens Care Med, Sydney, NSW, Australia
[9] Univ New South Wales, South Western Sydney Clin Sch, Sydney, NSW, Australia
[10] Univ Helsinki, Dept Anaesthesiol Intens Care & Pain Med, Helsinki, Finland
[11] Helsinki Univ Hosp, Helsinki, Finland
[12] Univ Hosp Basel, Dept Intens Care Med, Dept Clin Res, Basel, Switzerland
[13] Univ Basel, Basel, Switzerland
[14] Karolinska Inst, Dept Clin Sci & Educ, Sect Anaesthesia & Intens Care, Sodersjukhuset, Stockholm, Sweden
[15] Homi Bhabha Natl Inst, Tata Mem Hosp, Dept Anaesthesiol Crit Care & Pain, Mumbai, Maharashtra, India
[16] King Saud Bin Abdulaziz Univ Hlth Sci, King Abdullah Int Med Res Ctr, Dept Intens Care Med, Minist Natl Guard Hlth Affairs, Riyadh, Saudi Arabia
[17] Jagiellonian Univ Med Coll, Ctr Intens Care & Perioperat Med, Krakow, Poland
[18] Natl Univ Hosp Iceland, Landspitali, Div Anaesthesia & Intens Care, Perioperat Serv, Reykjavik, Iceland
[19] Univ Iceland, Fac Med, Reykjavik, Iceland
[20] Charles Univ Prague, Gen Univ Hosp, Fac Med 1, Dept Anesthesiol & Intens Care, Prague, Czech Republic
[21] Univ Groningen, Univ Med Ctr Groningen, Dept Crit Care, Groningen, Netherlands