. 2020 Oct 21;2020:1840543. doi: 10.1155/2020/1840543
Copyright © 2020 Tiantian Gu 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 1.
The whole flowchart of our study protocol.