1. Department of Cardiac Surgery, University Hospital Oldenburg, European Medical School Oldenburg-Groningen, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
2. Department of Cardiothoracic Surgery, Heart Center, University Hospital Cologne, Cologne, Germany
3. Department of Cardiothoracic Transplantation & Mechanical Circulatory Support, Royal Brompton and Harefield NHS Foundation Trust, Harefield, Middlesex, London, United Kingdom
4. Department of Cardiac Surgery, Heart and Marfan Center, University of Heidelberg, Heidelberg, Germany