. 2011 Sep 27;9:Doc26. doi: 10.3205/000149
Copyright © 2011 Schwamborn et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free to copy, distribute and transmit the work, provided the original author and source are credited.
Figure 4. Kaplan-Meier plot of overall survival.
