. 2018 Aug 31;11(2):242–247. doi: 10.15283/ijsc18032
Copyright © 2018 by the Korean Society for Stem Cell Research
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.