1. 1Royal United Hospital Bath NHS Foundation TrustBath, UK
2. 2Nottingham University Hospitals NHS TrustNottingham, UK
3. 3Colchester Hospital NHS TrustColchester, UK
4. 4West Suffolk Hospital NHS TrustBury St Edmonds, UK
5. 5Hammersmith HospitalImperial College London, London, UK
6. 6Royal Free London NHS Foundation Trust – CardiologyLondon, UK
7. 7West Suffolk NHS Foundation TrustBury Saint Edmunds, UK
8. 8Liverpool John Moores UniversityResearch Institute for Sports and Exercise Physiology, Liverpool, UK
9. 9Papworth Hospital NHS Foundation TrustCambridge, UK
10. 10Leeds Teaching Hospitals NHS TrustLeeds, UK
11. 11Papworth HospitalCambridge, UK
12. 12Queen Alexandra HospitalPortsmouth, UK
13. 13Imperial College LondonNHLI, National Heart & Lung Institute, London, UK
14. 14Imperial College LondonNational Pulmonary Hypertension Service, London, UK
15. 15Hammersmith HospitalLondon, UK
16. 16St Bartholomew’s HospitalBarts’ Heart Centre, London, UK
17. 17Royal Liverpool and Broadgreen University Hospitals NHS TrustLiverpool, UK
18. 18University Hospital Birmingham and University of BirminghamBirmingham, UK