. 2022 Feb 25;101(8):e28774. doi: 10.1097/MD.0000000000028774
Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.
This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0
Figure 1.
Flow diagram of the study selection process.