[1] All India Inst Med Sci, Dept Anesthesiol & Crit Care, Great Eastern Rd, Raipur, Madhya Pradesh, India
[2] St Michaels Hosp, Li Ka Shing Knowledge Insitute, Crit Care Med, Toronto, ON, Canada
[3] Univ Med & Pharm Grigore T Popa Iasi, Clin Hosp Rehabil Iasi, Iasi, Romania
[4] Amer Univ Beirut, Sch Med, Dept Anesthesiol, Med Ctr, Beirut, Lebanon
[5] Hosp Sestri Levante, Resp Dis Unit, Sestri Levante, Italy
[6] San Giuseppe Moscati Hosp, Geriatr & Intens Geriatr Cares, Avelllino, Italy
[7] Inst Nacl Enfermedades Resp Ismael Cosio Villegas, Crit Care, Inst Nacl Ciencias Med Nutr Salvador Zubiran, Mexico City, DF, Mexico
[8] Med Univ Silesia, Sch Med Katowice, Dept Pneumonol, Katowice, Poland
[9] Univ Bari Aldo Moro, Dept Basic Med Sci Neurosci & Sense Organs, Sect Resp Dis, Bari, Italy
[10] Sainte Musse Hosp, Intens Care Dept, Toulon, France
[11] Rutgers Univ New Jersey, Med Sch, Newark, NJ USA
[12] Univ Campania Luigi Vanvitelli, Naples, Italy
[13] AORN Colli, Cardiac Surg Unit, Naples, Italy
[14] Milano Bicocca Univ, San Gerardo Hosp, Gen Intens Care Unit, Milan, Italy
[15] Kings Coll London, Fac Life Sci & Med, London, England
[16] Humanitas Gradenigo Hosp, Intens Care Unit, Turin, Italy
[17] Sapienza Univ Rome, Resp Dis Unit, Dept Cardiovasc & Resp Dis, Policlin Umberto 1, Rome, Italy
[18] Univ Calif Irvine, Div Pulm & Crit Care Med, Irvine, CA USA
[19] VA Long Beach Healthcare Syst, Long Beach, CA USA
[20] Careggi Univ Hosp, Med & Surg Intens Care Unit, Florence, Italy
[21] Hosp Beatriz Angelo, Pulm Serv, Loures, Portugal
[22] Wayne State Univ, Sch Med, Div Pulm Crit Care & Sleep Med, Detroit, MI 48202 USA
[23] S Camillo Forlanini Hosp, High Dependency Resp Care Unit STIRS, Rome, Italy
[24] Weill Cornell Med New York, Dept Med, New York, NY USA
[25] Univ Sapienza Roma, Rome, Italy
[26] Univ Milan, Niguarda Hosp, Neurorehabil, Resp Unit,Neuromuscular OmniCtr NeMO, Milan, Italy
[27] Hosp San Raffaele, Sleep Disorder Unit, Milan, Italy
[28] Univ Hosp St Orsola Malpighi, Emergency Dept, Bologna, Italy
[29] ASL Modena, Santa Maria Bianca Hosp, Resp Unit, Modena, Italy
[30] Evangel Klinikum Niederrhein, Dept Resp Med, Oberhausen, Germany
[31] AO Osped Colli Naples Monaldi, Resp Unit, Naples, Italy
[32] Royal Perth Hosp, Dept Intens Care Med, Perth, WA, Australia
[33] Univ Western Australia, Sch Populat & Global Hlth, Perth, WA, Australia
[34] Murdoch Univ, Sch Vet & Life Sci, Perth, WA, Australia
[35] Prince Sultan Mil Coll Hlth Sci, Dept Resp Care, Dhahran, Saudi Arabia
[36] Univ Autonoma Barcelona, Pneumol Serv, Hosp Sabadell, Sabadell, Spain
[37] Georg August Univ, Univ Med Ctr Gottingen, Dept Anaesthesiol, Gottingen, Germany
[38] Bari Aldo Moro Univ, Cardiothorac Dept, Resp & Sleep Med Unit, Policlin, Bari, Italy
[39] Bari Univ Med Sch, Cardiothorac Dept, Policlin, Resp & Sleep Unit, Bari, Italy
[40] St Vincenz Hosp Limburg, Departement Cardiol Pneumol & Intens Care, Limburg, Germany
[41] Univ Duesseldorf, Acad Teaching Hosp, Petrus Hosp Wuppertal, Clin Pneumol Allergol Sleep & Intens Care, Wuppertal, Germany
[42] Istanbul Univ Cerrahpasa, Cerrahpasa Sch Med, Dept Intens Care, Istanbul, Turkey
[43] Chongqing Med Univ, Affiliated Hosp 1, Dept Resp Med, Chongqing, Peoples R China
[44] Univ Hosp Limerick, Dept Anaesthesia & Intens Care, Limerick, Ireland
[45] Hosp Punta Europa, Intens Care Unit, Cadiz, Spain
[46] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Anesthesia Crit Care & Emergency, Milan, Italy
[47] Hosp Santa Marta, Pneumol Dept, Lisbon, Portugal
[48] Univ Hlth Sci, Pulm & Crit Care Dept, Istanbul, Turkey
[49] San Giovanni Addolorata, Dept Emergency Med, Rome, Italy
[50] Univ Crete Greece, ICU Univ Hosp Herakl, Med Sch, Intens Care Med, Iraklion, Greece