1. Center for Cardiovascular Quality and Outcomes; Northwestern University Feinberg School of Medicine; Chicago IL USA
2. Department of Medicine; University Hospital; Zürich Switzerland
3. Department of Cardiology; Military Hospital; Wroclaw Poland
4. Division of Hospital Medicine; Northwestern University Feinberg School of Medicine; Chicago IL USA
5. Department of Cardiology; Wilford Hall Medical Center; San Antonio TX USA
6. Department of Academic Cardiology; University of Hull, Castle Hill Hospital; Hull UK
7. Stavanger University Hospital; Stavanger Norway
8. Institute of Internal Medicine; University of Bergen; Bergen Norway
9. University of Texas Southwestern Medical Center; Dallas TX USA
10. Division of Cardiology; University of California Los Angeles David Geffen School of Medicine; Los Angeles CA USA
11. Department of Cardiology; University Hospital Groningen; Groningen The Netherlands
12. Service de Cardiologie, Hôpital Bichat; Paris France
13. Cardiology Department; Hospital Universitario La Paz; Madrid Spain
14. Hospital Lariboisière; Paris France
15. U942 INSERM; University Paris Diderot; Paris France
16. Department of Cardiology; University of Brescia; Brescia Italy
17. Department of Medicine, Section of Cardiology; Helsinki University Central Hospital; Helsinki Finland
18. Department of Emergency Medicine and Center for Cardiovascular Quality and Outcomes; Northwestern University Feinberg School of Medicine; Chicago IL USA
19. Department of Cardiology II; University Institute for Cardiovascular Diseases; Belgrade Serbia
20. Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
21. Henri Poincaré University of Nancy; Nancy France
22. Department of Cardiology; Campus Virchow-Klinikum, Charité Universitätsmedizin; Berlin Germany
23. Department of Intensive Care Medicine; St George's Hospital; London UK
24. British Heart Foundation Cardiovascular Research Centre; University of Glasgow; Glasgow Scotland UK
25. Heart Failure Unit, Department of Cardiology; Athens University Hospital Attikon; Rimini 1 12461 Haidari Athens Greece