. 2019 Nov 28;19(1):663–670. doi: 10.3892/ol.2019.11151
Copyright: © Liu 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.