- Correspondence to:
Mrs L Haines
Principal Research Officer, Royal College of Paediatrics and Child Health, 50 Hallam Street, London W1W 6DE, UK;
- Accepted September 24, 2004
- First published March 21, 2005.
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.