1. Department of Surgery and Cancer, Imperial College London, London, UK
2. Department of Cardiothoracic Surgery, Manchester University NHS Foundation Trust, Manchester, UK
3. MRC Centre for Transplantation, King’s College London, London, UK
4. Department of Cardiothoracic Surgery, University of Thessaly, Larissa, Greece
5. Department of Cardiothoracic Surgery, Royal Brompton & Harefield NHS Foundation Trust, London, UK
6. Department of Cardiothoracic Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK