- Correspondence to Dr Nathalie Auger, Institut national de santé publique du Québec, 190, boulevard Crémazie Est, Montréal, Québec H2P 1E2, Canada;
- Accepted March 31, 2010
- First published July 13, 2010.
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.