. 2012 Dec 13;11:32. doi: 10.1186/1476-0711-11-32
Copyright ©2012 2012 Lee and Burgess; 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 1.
Case Selection.