- Correspondence to: Dr John B West Department of Medicine 0623A, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0623, USA;
- Accepted July 20, 2006
- First published October 4, 2006.
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.