- Correspondence to Dr M K Gould, VA Palo Alto Health Care System, 3801 Miranda Ave (111P), Palo Alto, CA 94304, USA;
- Received October 17, 2008
- Accepted March 30, 2009
- First published August 28, 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.