. 2008 May 28;9(Suppl 6):S4. doi: 10.1186/1471-2105-9-S6-S4
Copyright © 2008 Guo 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.
Figure 2.
SPR and TBR.