. 2014 Dec 24;30(4):181–184. doi: 10.5625/lar.2014.30.4.181
Copyright © 2014 Korean Association for Laboratory Animal Science
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.