1. Department of Cardiovascular Sciences; European Hospital; Rome Italy
2. Department of Anesthesiology and Critical Care Medicine; Lariboisiere Hospital; University Paris 7 Diderot France
3. Department of Cardiology; Athens University; Athens Greece
4. Heart Failure Unit; Attikon University Hospital; Athens Greece
5. Division of Cardiology; Medizinische Universitätsklinik; Homburg/Saar Germany
6. Department of Cardiology; University Medical Center; Groningen The Netherlands
7. Division of Cardiology; University Central Hospital; Helsinki Finland
8. Inserm, Clinical Investigation Center; University Henri Poincaré; Nancy France
9. Department of Intensive Care; St George Hospital; London UK
10. Department of Cardiovascular Surgery, Heart Center NRW; Ruhr University Bochum; Bad Oeynhausen Germany
11. Division of Cardiology; University of Bergen, Stavanger University Hospital; Stavanger Norway
12. Division of Cardiology; Northwestern University; Chicago IL USA