- Correspondence to Professor M R Cowie, Department of Cardiology, National Heart and Lung Institute, Dovehouse Street, London SW3 6LY, UK;
- Accepted June 23, 2009
- First published July 8, 2009.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.