. 2017 Aug 8;8(59):100499–100507. doi: 10.18632/oncotarget.20037
Copyright: © 2017 Zhou et al.
This is an open-access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Figure 3. Funnel plot of overall survival.
