. 2018 Sep 24;2018:3820956. doi: 10.1155/2018/3820956
Copyright © 2018 Qiuling Zhao et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 3.
Forest plots of progression-free survival (PFS).