1. Department of Cardiothoracic Transplantation and Mechanical Circulatory Support; Royal Brompton & Harefield NHS Foundation Trust; London UK
2. Department of Cardiac Surgery; Heart Center; University of Heidelberg; Heidelberg Germany
3. Department of Cardiothoracic Surgery; Heart Center; University Hospital of Cologne; Cologne Germany
4. Department of Heart Failure and Transplant Medicine; Royal Brompton & Harefield NHS Foundation Trust; London UK