- Correspondence to:
Dr Siew Yen Ho
Guy Scadding Building, National Heart & Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY;
- First published March 16, 2006.
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.