. 2017 Oct 11;8(59):100603–100613. doi: 10.18632/oncotarget.21823
Copyright: © 2017 Peng 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 1. Flowchart for the selection of studies.
