7 Department of Translational Medical Sciences, University of Campania "L. Vanvitelli", Naples, Italy.
8 Cardiac Surgery Unit, Monaldi Hospital, Naples, Italy.
9 Division of Cardiovascular and Thoracic Surgery, Duke University Medical Center, Durham, NC, USA.
10 Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, PA, USA.
11 University Clinic for Cardiac Surgery, Medical University Innsbruck, Innsbruck, Austria.
12 Aortic Institute at Yale New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA.
13 Department of Cardiac Surgery, University Medicine Rostock, University of Rostock, Rostock, Germany.
14 Division of Cardiovascular and Thoracic Surgery, The University of Texas at Austin/Dell Medical School, Austin, TX, USA.
15 Department of Thoracic and Cardiovascular Surgery, University Medical Centre Tübingen, Tübingen, Germany.
16 Cardiac Surgery Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
17 Department of Cardiac Surgery, Klinikum Oldenburg, Oldenburg, Germany.
18 The Carl von Ossietzky University Oldenburg, Oldenburg, Germany.
19 Department of Cardiothoracic Surgery and the Robert WM Frater Cardiovascular Research Centre, The University of the Free State, Bloemfontein, South Africa.
20 Department of Cardiac Surgery and Cardiovascular Research, Dedinje Cardiovascular Institute, Belgrade, Serbia.
21 Division of Cardiology at the Royal Brompton & Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London, UK.
22 National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.
23 Vascular Surgery Department of Medicine and Surgery, University of Insubria School of Medicine, Varese, Italy.
24 Division of Cardiothoracic Surgery, Department of Surgery, University of Virginia, Charlottesville, VA, USA.
25 Department of Cardiovascular Surgery, Hospital Clinic de Barcelona, University of Barcelona, Barcelona, Spain.
26 Department of Diagnostic and Interventional Radiology, University Hospital Freiburg, Freiburg, Germany.
27 Department of Cardiac Surgery, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
28 Department of Cardiac Thoracic and Vascular Diseases, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.
29 Department of Thoracic and Cardiovascular Surgery, West German Heart and Vascular Center, University Medicine Essen, Essen, Germany.