. 2018 Jul 18;2018:3429151. doi: 10.1155/2018/3429151
Copyright © 2018 Yulin Liang 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 9.
Publication bias analysis chart (8 weeks).