. 2020 Mar 5;56(5):1140–1151. doi: 10.3892/ijo.2020.5006
Copyright: © Cho et al.
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.