[1] Ghent Univ Hosp, Dept Intens Care Med, Corneel Heymanslaan 10, Ghent, Belgium
[2] Antwerp Univ Hosp, Dept Emergency Med, Antwerp, Belgium
[3] Ghent Univ Hosp, Dept Geriatr Med, Ghent, Belgium
[4] Taunton & Somerset NHS Fdn Trust, Dept Emergency Med, Musgrove Pk Hosp, Taunton, Somerset, England
[5] Teikyo Univ, Sch Med, Tokyo, Japan
[6] Shaare Zedek Med Ctr, Emergency Dept, Jerusalem, Israel
[7] Univ Amsterdam, Dept Anesthesiol, Amsterdam UMC, Amsterdam, Netherlands
[8] Semmelweis Univ, Dept Anaesthesiol & Intens Therapy, Budapest, Hungary
[9] Emergency Med Serv Hradec Kralove Reg, Hradec Kralove, Czech Republic
[10] Univ Hosp Hradec Kralove, Hradec Kralove, Czech Republic
[11] Univ Ghent, Fac Med & Hlth Sci, Ghent, Belgium
[12] Rouen Univ Hosp, Dept Emergency Med, Rouen, France
[13] European Univ, Nicosia, Cyprus
[14] Hellenic Soc Cardiopulm Resuscitat, Athens, Greece
[15] Univ Med Ctr Gottingen, Dept Anaesthesiol, Gottingen, Germany
[16] Univ Hosp Innsbruck, Dept Anesthesiol & Crit Care Med, Innsbruck, Austria
[17] Harvard Med Sch, Dept Emergency Med, Boston, MA USA
[18] Harvard Med Sch, Dept Anesthesia Crit Care & Pain Med, Div Crit Care, Beth Israel Deaconess Med Ctr, Boston, MA USA
[19] Univ Bergen, Reg Ctr Emergency Med Res & Dev RAKOS, Dept Anesthesiol & Intens Care, Dept Clin Med,Stavanger Univ Hosp, Bergen, Norway
[20] East Slovak Inst Oncol, Dept Anesthesiol & Intens Care, Kosice, Slovakia
[21] Helsinki Univ Hosp, Emergency Med & Serv, Helsinki, Finland
[22] Hosp Gen Univ Reina Sofia, Murcia, Spain
[23] Med Univ Gdansk, Dept Anaesthesiol & Intens Therapy, Gdansk, Poland
[24] Akureyri Hosp, Akureyri, Iceland
[25] Univ Akureyri, Akureyri, Iceland
[26] Cork Univ Hosp, Dept Emergency Med, Cork, Ireland
[27] Univ Med & Pharm GrT Popa, Iasi, Romania
[28] Emergency Cty Hosp Sf Spiridon, Iasi, Romania
[29] Nicosia Gen Hosp, Nicosia, Cyprus
[30] Pontificia Univ Catolica Chile, Santiago, Chile
[31] Orebro Univ, Dept Med Sci, Stockholm, Sweden
[32] Karolinska Inst, Dept Clin Res & Educ, Stockholm, Sweden
[33] Municipal Inst Emergency Med, Novi Sad, Serbia
[34] Univ Ghent, Fac Sci, Dept Appl Math Comp Sci & Stat, Ghent, Belgium
[35] London Sch Hyg & Trop Med, Dept Med Stat, London, England
[36] Ghent Univ Hosp, Dept Emergency Med, Ghent, Belgium