- Correspondence to Dr Marie Laga, Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium;
- Accepted November 27, 2009
- First published February 18, 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.