1. Department of Cardiac Surgery, Medical University of Innsbruck, Anichstrasse 35, A-6020 Innsbruck, Austria
2. University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany
3. Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
4. Department of Internal Medicine III, Medical University of Innsbruck, Innsbruck, Austria
5. Department of Cardiology Mediclinic City, Hospital Dubai, Dubai, United Arab Emirates
6. Clinic for Thoracic and Cardiovascular Surgery, West German Heart and Vascular Centre Essen, Essen, Germany
7. Department of Cardiac Surgery and Transplantation, Henry Mondor Hospital, Paris, France
8. Department of Cardiac Surgery and Transplantation, Louis Pradel Hospital, Lyon, France
9. Department of Cardiothoracic Surgery, Maastricht University Medical Centre, Maaastricht, The Netherlands
10. Department of Cardiac Surgery, San Donato Hospital, IRCCS, Milan, Italy