External Positions
- President, International Society for Adult Congenital Cardiac Disease, 2004 - 2005
- President-Elect, International Society for Adult Congenital Cardiac Disease, 2002 - 2003
- ESC Nucleus and UK representative, EuroHeart Survey for Adult Congenital Heart Disease, 2001 - 2003
- Secretary General, International Society for Adult Congenital Cardiac Disease, 2000 - 2001
Editorial Boards
- Eur Heart J, International Editorial Board & Guest Editor, 2003
- Intern J Card, Associate Editor, 2003
- American Heart J, Journal Reviewer, 2003
- Lancet, Journal Reviewer, 2003
- Hellenic J Card, Section Editor, Congenital Heart Disease, 2002
- CME Cardiology, Section Editor, Congenital Heart Disease, 2002
- Europace, Journal Reviewer, 2002
- Arch Dis Child, Journal Reviewer, 2001
- Drugs, Journal Reviewer, 2000
- European Heart J, Journal Reviewer, 1999
- Inter J Cardiol, Journal Reviewer, 1999
- Clinical Science, Journal Reviewer, 1998
- Circulation, Journal Reviewer, 1997
- J Am Coll Cardiol, Journal Reviewer, 1997
- Heart, Journal Reviewer, 1994
- Cardiol Young, Journal Reviewer, 1994