[1] Heinrich Heine Univ Dusseldorf, Univ Klinikum Dusseldorf, Klin Kardiovaskulare Chirurg, Dusseldorf, Germany
[2] Asklepios Klin St Georg, Med Klin, Abt Kardiol 2, Hamburg, Germany
[3] Univ Cologne, Herzzentrum, Klin Innere Med 3, Cologne, Germany
[4] Univ Klinikum Heidelberg, Klin Kardiol Angiol & Pneumol, Zentrum Innere Med, Heidelberg, Germany
[5] St Antonius Hosp, Klin Innere Med & Intensivemed, Eschweiler, Germany
[6] Univ Klinikum Hamburg Eppendorf, Klin Intensivmed, Hamburg, Germany
[7] Univ Klinikum Tubingen, Dept Innere Med Internist Intensivstat, Tubingen, Germany
[8] Univ Herzzentrum Freiburg, Klin Kardiol & Angiol 1, Bad Krozingen, Germany
[9] Albert Ludwigs Univ, Med Fak, Freiburg, Germany
[10] Hannover Med Sch, Klin Kardiol & Angiol, Hannover, Germany
[11] Stadt Klinikum Solingen gGmbH, Klin Kardiol & Allgemeine Innere Med, Solingen, Germany
[12] Univ Klin, Herz Zentrum Leipzig, Klin Innere Med, Leipzig, Germany
[13] Evangel Krankenhaus Niederrhein, Klin Herz & Gefasschirurg, Herzzentrum Duisburg, Duisburg, Germany
[14] Ludwig Maximilians Univ Munchen, Klinikum Univ Munchen, Herzchirurg Klin & Poliklin, Munich, Germany
[15] MediClin Herzzentrum Coswig, Coswig, Germany
[16] LVR Klin Bonn, Bonn, Germany
[17] Univ Cologne, Klin Anasthesiol & Operat Intensivmed, Cologne, Germany
[18] ALB FILS KLINIKEN GmbH, Klin Eichert, Klin Anasthesiol Intensivmed Notfallmed & Schmerz, Goppingen, Germany
[19] Univ Klinikum Schleswig Holstein, Inst Rettungs & Notfallmed, Kiel, Germany
[20] Univ Med Essen, Zentrum Notfallmed, Essen, Germany
[21] Albert Ludwigs Univ Freiburg, Med Fak, Univ Klinikum Freiburg, Univ Notfallzentrum, Freiburg, Germany
[22] Ludwig Maximilians Univ Munchen, Klinikum Univ Munchen, Klin Anasthesiol, Munich, Germany