. 2013 Jul 10;8:179. doi: 10.1186/1748-717X-8-179
Copyright © 2013 Karam 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.
Progression free survival by nodal status.