1. Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
2. German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
3. Abbott Medical GmbH, Eschborn, Germany
4. Department of Cardiac Surgery, Heidelberg University Hospital, Heidelberg, Germany
5. Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
6. Department of Cardiac Surgery, Johann-Wolfgang-Goethe University, Frankfurt, Germany
7. Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany
8. Department of Cardiothoracic Surgery, Karolinska University Hospital, Stockholm, Sweden
9. Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW Ruhr-University of Bochum, Bad Oeynhausen, Germany
10. Department of Cardiothoracic Transplantation and Mechanical Circulatory Support, Royal Brompton and Harefield NHS Foundation Trust, Harefield Hospital, London, UK
11. Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany
12. Division of Cardiac Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna, S. Orsola University Hospital, Bologna, Italy
13. Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Cardiovascular Surgery, Berlin, Germany
14. Department of Health Sciences and Technology, Eidgenössiche Technische Hochschule Zürich, Translational Cardiovascular Technology, Zurich, Switzerland