1. National Heart and Lung Institute Imperial College London London UK
2. Imperial College Healthcare NHS Trust London UK
3. West Sussex Hospitals NHS Trust West Sussex UK
4. Great Western Hospitals NHS Foundation Trust Swindon UK
5. West Hertfordshire Hospitals NHS Trust Hertfordshire UK
6. Barts Health NHS Trust London UK
7. Medway NHS Foundation Trust Kent UK
8. Wycombe General Hospital High Wycombe UK
9. North Middlesex University Hospital London UK
10. Royal Brompton and Harefield NHS Trust London UK
11. Guy's and St. Thomas's NHS Foundation Trust London UK
12. Royal Papworth Hospital NHS Foundation Trust Cambridge UK
13. University Hospitals Birmingham Birmingham UK
14. Sherwood Forest Hospitals NHS Foundation Trust UK
15. Department of Cardiovascular Sciences University of Leicester Leicester UK
16. Kings College NHS Hospital London UK
17. Kettering General Hospital Northampton UK
18. Royal Berkshire NHS Foundation Trust Reading UK
19. Royal Free London Foundation NHS Trust London UK
20. London North West University Healthcare NHS Trust London UK
21. Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield UK
22. Morriston Hospital Regional Cardiac Centre Wales UK
23. Nottingham University Hospitals NHS Trust Nottingham UK
24. Croydon NHS University Hospital London UK
25. Geisinger Commonwealth School of Medicine Geisinger Heart Institute Scranton PA USA
26. Imperial College Trials Unit Imperial College London London UK
27. School of Health and Wellbeing University of Glasgow Glasgow UK