1. Cardiology Clinical Academic GroupSt. George's, University of London and St. George's Hospital, St. George's University Hospitals NHS Foundation Trust London UK
2. Department of CardiologyHarefield Hospital, Royal Brompton and Harefield NHS Foundation Trust London UK
3. National Heart and Lung InstituteImperial College London London UK
4. North West Cardiac CentreWythenshawe Hospital, Manchester University NHS Foundation Trust Manchester UK
5. Department of CardiologyLeeds General Infirmary, Leeds Teaching Hospitals NHS Trust Leeds UK
6. Lancashire Cardiac CentreBlackpool Victoria Hospital, Blackpool Teaching Hospitals NHS Foundation Trust Blackpool UK
7. Cardiovascular DepartmentAin Shams University Cairo Egypt
8. Department of CardiologyUniversity Hospital Galway, Galway University Hospitals Galway Ireland
9. Manchester Heart CentreManchester Royal Infirmary, Manchester University NHS Foundation Trust Manchester UK
10. Department of CardiologyUniversity Hospital of Wales, Cardiff and Vale University Health Board Cardiff UK
11. Belfast Heart CentreRoyal Victoria Hospital, Belfast Health and Social Care Trust Belfast UK