. 2014 Apr 1;4:22. doi: 10.1186/s13568-014-0022-2
Copyright © 2014 Park et al.; licensee Springer
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.