- Correspondence to:
Dr M Chalumeau
Clinical Epidemiology Unit, Department of Paediatrics, Saint-Vincent-de-Paul Hospital, 74–82 avenue Denfert-Rochereau, 75014 Paris, France;
- Accepted May 9, 2005
- First published May 12, 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.