[1] Univ Barcelona, Emergency Dept, Barcelona, Spain
[2] Hosp Univ Son Espases, Cardiol Dept, Palma De Mallorca, Spain
[3] Ctr Nacl Invest Cardiovasc CNIC, Madrid, Spain
[4] Hlth Res Inst Balearic Isl IdISBa, Grp Fisiopatol & Terapeut Cardiovasc, Palma De Mallorca, Spain
[5] Brigham & Womens Hosp, Dept Emergency Med, Boston, MA 02115 USA
[6] Harvard Med Sch, Boston, MA 02115 USA
[7] Univ Barcelona, Intens Care Dept, Barcelona, Spain
[8] Hosp Sanitas CIMA, Cardiol Dept, Barcelona, Spain
[9] Univ Hosp Basel, Dept Cardiol, Basel, Switzerland
[10] Univ Hosp Basel, Cardiovasc Res Inst Basel CRIB, Basel, Switzerland
[11] Univ Sao Paulo, Med Sch, Heart Inst INCOR, Sao Paulo, Brazil
[12] Baylor Coll Med, Henry JN Taub Dept Emergency Med, Houston, TX 77030 USA
[13] Imperial Coll, Royal Brompton & Harefield NHS Fdn Trust, London, England
[14] Royal Brisbane & Womens Hosp, Emergency & Trauma Ctr, Herston, Qld, Australia
[15] Hosp Clin San Carlos, Dept Emergency Med, Madrid, Spain
[16] Univ Complutense Madrid, Hosp Clin San Carlos IdISSC, Inst Invest Sanitaria, Madrid, Spain
[17] Veteran Affairs VA, Coronary Care Unit, San Diego, CA USA
[18] Veteran Affairs VA, Heart Failure Program, San Diego, CA USA
[19] Univ Antwerp, Antwerp Univ Hosp, Antwerp, Belgium
[20] Univ Complutense Madrid, Dept Cardiol, Madrid, Spain
[21] Univ Complutense Madrid, Cardiovasc Res Area, Madrid, Spain
[22] Univ Paris Diderot, Paris, France
[23] Hop Univ St Louis Lariboisiere, AP HP, Paris, France