1. National Heart and Lung InstituteFaculty of MedicineImperial College LondonHammersmith HospitalLondonUK
2. MRC Biostatistics UnitSchool of Clinical MedicineCambridge Institute of Public HealthCambridgeUK
3. Golden Jubilee National HospitalNHS Greater Glasgow and ClydeClydebankUK
4. Golden Jubilee National HospitalUniversity of GlasgowScotlandUK
5. Royal Free HospitalRoyal Free London NHS Foundation TrustLondonUK
6. Department of InfectionImmunity and Cardiovascular DiseaseUniversity of SheffieldSheffieldUK
7. Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
8. National Pulmonary Hypertension ServiceHammersmith HospitalImperial College Healthcare NHS TrustLondonUK
9. Newcastle Freeman HospitalFreeman Road, High HeatonNewcastle Upon TyneUK
10. Royal United HospitalRoyal United Hospitals Bath NHS Foundation TrustBathUK
11. Heart Lung Research InstituteUniversity of CambridgeCambridgeUK
12. Department of MedicineUniversity of CambridgeCambridgeUK
13. Royal Brompton HospitalGuy’s and St Thomas’s TrustLondonUK