. 2007 Jul 16;2:14. doi: 10.1186/1749-8104-2-14
Copyright © 2007 Spletter et al.; licensee BioMed Central Ltd.
This is an open access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.