1. Department of Cardiology St George's University Hospitals NHS Foundation Trust London UK
2. Department of Cardiology Mater Private Hospital Dublin UK
3. Department of Cardiology Royal Brompton and Harefield NHS Foundation Trust London UK
4. Department of Cardiology Bristol Heart Institute Bristol UK
5. Department of Cardiology Belfast Health and Social Care Trust Belfast UK
6. Department of Cardiology Golden Jubilee Hospital Clydebank UK
7. Department of Cardiology Royal Bournemouth Hospital Bournemouth UK
8. Department of Cardiology Kings College Hospital NHS Foundation Trust London UK