1. Department of Cardiovascular Sciences; University of Leicester; Leicester UK
2. Department of Cardiothoracic Surgery / Cardiovascular Sciences; University Hospitals of Leicester / University of Leicester; Leicester UK
3. Department of Cardiothoracic Surgery; Glenfield Hospital; Leicester UK
4. Leicester Medical School; University of Leicester; Leicester UK
5. Department of Cardiac Surgery; University of Verona; Verona Italy
6. University Hospitals of Leicester NHS Trust; Leicester UK
7. Leicester Clinical Trials Unit; University of Leicester, Glenfield Hospital; Leicester UK