1. European Association for Cardio-Thoracic Surgery, Windsor, UK
2. Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, Netherlands
3. Department of Cardiology, Erasmus Medical Center, Rotterdam, Netherlands
4. Department of Cardiac Thoracic Vascular Sciences and Public Health, Padua University Hospital, Padua, Italy
5. Department of Cardiac Surgery, Universitair Ziekenhuis Gent, Gent, Belgium
6. Department of Cardiothoracic and Vascular Surgery, Örebro University Hospital, Örebro, Sweden
7. Department of Cardiothoracic Surgery, University of Birmingham, University Hospital Birmingham, Birmingham, UK