- Correspondence to: Dr D J Biau Département de Biostatistique et Informatique Médicale, Hôpital St Louis, 1, avenue Claude-Vellefaux, 75475 Paris Cedex 10, France;
- Accepted March 5, 2007
- First published June 1, 2007.
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.