. 2016 Feb;71(2):110–113. doi: 10.6061/clinics/2016(02)10
Copyright © 2016 CLINICS
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1-.
Flowchart of the selection process for the meta-analysis.