. 2017 May 16;7(1):6–10. doi: 10.3892/br.2017.910
Copyright: © Yamamoto 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.