1. Cardiac Surgery Unit, Lancisi Cardiovascular Center, Polytechnic University of Marche, Ospedali Riuniti, Ancona, Italy
2. Department of Cardiac Surgery, University Heart Centre Dresden, Dresden, Germany
3. Henri Mondor Hospital, University of Paris, Paris, France
4. Department of Cardiovascular Surgery, University Hospital, University of Bern, Bern, Switzerland
5. University Clinic for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
6. Southlake Regional Health Centre, Newmarket, ON, Canada
7. Poliambulanza Foundation Hospital, Brescia, Italy
8. Cardiovascular Surgery Unit, Maria Cecilia Hospital GVM Care & Research, Cotignola, Italy
9. Cardiovascular Center, Paracelsus Medical University, Nuremberg, Germany
10. Cardiovascular Department, Clinica San Gaudenzio, Novara, Italy
11. Hannover Medical School, Hannover, Germany
12. Cardiac Surgery Department, Sant’Orsola Malpighi Hospital, University of Bologna, Bologna, Italy
13. Istituto Clinico Sant’Ambrogio, Clinical & Research Hospitals IRCCS Gruppo San Donato, Milan, Italy
14. Città di Lecce Hospital, GVM Care & Research, Lecce, Italy
15. Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
16. Department for the Treatment and Study of Cardiothoracic Diseases and Cardiothoracic Transplantation, IRCCS-ISMETT, Palermo, Italy
17. The Collaborative Research (CORE) Group, Sydney, Australia
18. Gasthuisberg, Cardiale Heelkunde, Leuven, Belgium
19. Pasquinucci Heart Hospital, Massa, Italy
20. Department of Cardiothoracic Surgery, The Royal Prince Alfred Hospital, Sydney, Australia