[1]Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Pulm Engn Grp, Dept Anesthesiol & Intens Care Med, Dresden, Germany;
[2]Univ Foggia, OO Riuniti Hosp, Dept Anesthesia & Intens Care, Foggia, Italy;
[3]Mt Sinai Hosp, Dept Anesthesiol, New York, NY 10029 USA;
[4]Imam Abdulrahman Bin Faisal Univ, Dammam, Saudi Arabia;
[5]Univ Fed Sao Paulo, Sao Paulo, Brazil;
[6]Univ Palermo, Dipartimento Di Chir On S, UOC Anestesia & Rianimaz AO Univ P Giaccone, Palermo, Italy;
[7]Univ Valencia, Hosp Gen, Valencia, Spain;
[8]Univ Hosp Magdeburg, Magdeburg, Germany;
[9]Amsterdam UMC, Locat AMC, Dept Anesthesiol, Amsterdam, Netherlands;
[10]Univ Nis, Sch Med, Clin Ctr Nis, Clin Anesthesia & Intens Therapy, Nish, Serbia;
[11]Zentralklin Bad Berka, Bad Berka, Germany;
[12]Thorac Ctr Coswig, Coswig, Germany;
[13]Univ Freiburg, Fac Med, Med Ctr, Dept Anesthesiol, Freiburg, Germany;
[14]Univ Freiburg, Fac Med, Med Ctr, Intens Care Med Clin, Freiburg, Germany;
[15]Univ Hosp Geneva, Geneva, Switzerland;
[16]Imperial Coll London, Fac Med, Dept Surg & Canc, Sect Anaesthet Pain Med & Intens Care, London, England;
[17]Harefield Hosp, Royal Brompton & Harefield NHS Fdn Trust, Dept Anaesthesia, Harefield, Middx, England;
[18]Semmelweis Univ, Ctr Anaesthesia & Intens Care, Budapest, Hungary;
[19]Univ Sheffield, Sheffield Teaching Hosp, Dept Anaesthesia & Intens Care Med, Sheffield, S Yorkshire, England;
[20]Weill Cornell Med, Dept Anesthesiol, New York, NY USA;
[21]Mil Med Acad, Belgrade, Serbia;
[22]Penn State Hershey Anesthesiol & Perioperat Med, Hershey, PA USA;
[23]Univ Genoa, Dept Surg Sci & Integrated Diagnost, Genoa, Italy;
[24]IRCCS San Martino Policlin Hosp, Genoa, Italy;
[25]Univ Hosp Aachen, Dept Anaesthesiol, Aachen, Germany;
[26]Univ Amsterdam, Acad Med Ctr, Dept Intens Care, Amsterdam, Netherlands;
[27]Univ Amsterdam, Acad Med Ctr, LEICA, Amsterdam, Netherlands;
[28]Mahidol Univ, Mahidol Oxford Trop Med Res Unit MORU, Bangkok, Thailand;
[29]Hosp Israelita Albert Einstein, Dept Crit Care, Sao Paulo, Brazil;
[30]Univ Insubria, Dipartimento Biotecnol & Sci Vita, Varese, Italy;
[31]CHU Charleroi, Dept Anesthesiol, Charleroi, Belgium;
[32]Univ Debrecen, Dept Anesthesiol & Intens Care, Debrecen, Hungary;
[33]Outcomes Res Consortium, Cleveland, OH USA;
[34]Sotiria Chest Dis Hosp, Pain Relief & Palliat Care Clin, Dept Anaesthesia, Postoperat ICU, Athens, Greece;
[35]Univ Patras, Dept Anaesthesiol & Crit Care Med, Patras, Greece;
[36]Fudan Univ, Shanghai Canc Ctr, Dept Anesthesiol, Shanghai, Peoples R China;
[37]Fudan Univ, Shanghai Med Coll, Dept Oncol, Shanghai, Peoples R China;
[38]Istanbul Univ, Istanbul Fac Med, Dept Anaesthesiol & Intens Care, Istanbul, Turkey