. 2017 Jan 23;34(3):194–199. doi: 10.5534/wjmh.2016.34.3.194
Copyright © 2016 Korean Society for Sexual Medicine and Andrology
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.