1. Cardiovascular Department, Cardiac Surgery Unit, Ospedali Riuniti, Polytechnic University of Marche, Ancona, Italy
2. The Collaborative Research (CORE) Group, Sydney, Australia
3. Hopital Universitaire de Berne, Berne, Switzerland
4. Medical University of Vienna, Vienna, Austria
5. Città di Lecce Hospital, GVM Care & Research, Lecce, Italy
6. Cardiovascular Center, Paracelsus Medical University, Nuremberg, Germany
7. Department of Cardiac Surgery, Sant’Orsola Malpighi Hospital, University of Bologna, Bologna, Italy
8. Centre Hospitalier Universitaire de Nancy, Université de Lorraine, Nancy, France
9. Gasthuisberg, Cardiale Heelkunde, Leuven, Belgium
10. Cardiac Surgery Unit, Centro Clinico-Diagnostico ‘G.B. Morgagni’, Heart Center, Pedara, Italy
11. Cardiovascular Department, Clinica San Gaudenzio, Novara, Italy
12. University of Leipzig, Leipzig, Germany
13. Istituto Clinico Sant'Ambrogio, Clinical & Research Hospitals IRCCS Gruppo San Donato, Milan, Italy
14. Dresden Heart Center, Department of Cardiac Surgery, Dresden University Hospital, Dresden, Germany
15. Hannover Medical School, Hannover, Germany
16. Salus Hospital, GVM Care & Research, Reggio Emilia, Italy
17. Southlake Regional Health Centre, Newmarket, ON, Canada
18. Poliambulanza Foundation Hospital, Brescia, Italy
19. Macquarie University, Sydney, Australia
20. Pasquinucci Heart Hospital, Massa, Italy