1. Edinburgh Imaging, The University of Edinburgh, Edinburgh, Scotland
2. British Heart Foundation Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, Scotland
3. National Institute for Health and Care Research, Leicester Biomedical Research Centre, University of Leicester, Leicester, England
4. Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
5. Department of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, Poland
6. Aberdeen Cardiovascular and Diabetes Centre, University of Aberdeen, Aberdeen, Scotland
7. Manchester University, NHS Foundation Trust, Manchester, England
8. Oxford University Hospitals, NHS Foundation Trust, Oxford, England
9. Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, England
10. Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, England
11. Royal Papworth Hospital, University of Cambridge, Cambridge, England
12. Department of Medicine, University of Cambridge, Cambridge, England
13. Cedars-Sinai Medical Center, Los Angeles, California
14. Adelaide Medical School, The University of Adelaide, Adelaide, Australia
15. Edinburgh Clinical Trials Unit, Usher Institute, The University of Edinburgh, Edinburgh, Scotland
16. Usher Institute, The University of Edinburgh, Edinburgh, Scotland
17. for the PREFFIR Investigators