1. Department of Congenital Cardiology; Leeds General Infirmary; Leeds United Kingdom
2. Department of Cardiology; Sussex Cardiac Centre; Brighton United Kingdom
3. Department of Adult Congenital Heart Disease; Queen Elizabeth Hospital; Birmingham United Kingdom
4. Department of Congenital Cardiology; Bristol Heart Institute; Bristol United Kingdom
5. Department of Cardiovascular Medicine; John Radcliffe Hospital; Oxford United Kingdom
6. Division of cardiovascular medicine; Radcliffe Department of Medicine; University of Oxford; Oxford United Kingdom
7. Department of Cardiology; Trent Cardiac Centre; Nottingham University Hospitals; Nottingham United Kingdom
8. Department of Cardiology; Royal Victoria Hospital; Belfast United Kingdom
9. Department of Cardiology; Manchester Royal Infirmary; Manchester United Kingdom
10. Department of Paediatric Cardiology; Freeman Hospital; Newcastle United Kingdom