[1] Univ Paris 07, Hop St Louis, AP HP, Med ICU,UFR Med, F-75010 Paris, France
[2] CHU Grenoble, Hop Michallon, INSERM, U823, F-38043 Grenoble, France
[3] Hadassah Hebrew Univ, Med Ctr, Dept Anesthesiol & Crit Care Med, Jerusalem, Israel
[4] Inst Nacl Canc, Intens Care Unit, Rio De Janeiro, Brazil
[5] Prague Univ Hosp, Med ICU, Dept Anesthesiol & Crit Care Med, Prague, Czech Republic
[6] Hosp Univ Asociado Gen Castellon, Serv Med Intens, Castellon de La Plana, Spain
[7] Orebro Univ Hosp, Ctr Hlth Care Sci, Orebro, Sweden
[8] Policlin Univ Hosp Catania, Catania, Italy
[9] Univ Hosp Geneva, Dept Intens Care, Geneva, Switzerland
[10] Univ Geneva, Geneva, Switzerland
[11] Ghent Univ Hosp, Dept Intens Care Med, De Pintelaan Ghent, Belgium
[12] Queens Univ, Dept Med, Kingston, ON K7L 3N6, Canada
[13] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Anaesthesia & Intens Care, Shatin, Hong Kong, Peoples R China
[14] Hosp Sao Joao, Dept Anaesthesia & Intens Care, Oporto, Portugal
[15] Med Univ Gdansk, Dept Anaesthesiol & Intens Therapy, Gdansk, Poland
[16] Univ Pittsburgh, Med Ctr, Pittsburgh, PA USA
[17] KA Rudolfsftiftung, Dept Med, Gen & Med Intens Care Unit, Vienna, Austria
[18] Semmelweis Univ, Surg Intens Care Unit, H-1085 Budapest, Hungary
[19] UCL, Dept Med, London, England
[20] Univ Ljubljana, Clin Ctr Ljubljana, Ljubljana, Slovenia
[21] Royal Perth Hosp, Intens Care Unit, Perth, WA, Australia
[22] CHU Fatouma Bourguiba, Intens Care Unit, Monastir, Tunisia
[23] Univ Helsinki, Cent Hosp, Dept Anaesthesia & Intens Care Med, Helsinki, Finland
[24] Vivantes Klinikum Neukolln, Dept Anesthesia Intens Care Med & Pain Management, Berlin, Germany
[25] Univ Cyprus, Dept Comp Sci, Nicosia, Cyprus
[26] HELIOS Spital, Dept Anesthesiol & Crit Care Med, Uberlingen, Germany
[27] Univ Paris 07, St Louis Hosp, AP HP, Biostat Dept,INSERM,U717, F-75010 Paris, France