. 2020 Mar 15;10(2):e100375. doi: 10.5812/aapm.100375
Copyright © 2020, Anesthesiology and Pain Medicine
This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
Figure 1. PRISMA flowchart of study.
