- Correspondence to Dr S Forsgren, Integrative Medical Biology, Anatomy, Umeå University, SE-901 87 Umeå, Sweden;
- Accepted March 28, 2009
- First published April 12, 2009.
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.