. 2016 Mar 21;13(5):3913–3919. doi: 10.3892/mmr.2016.5021
Copyright: © Long 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.