. 2015 Sep 30;12(4):523–531. doi: 10.4306/pi.2015.12.4.523
Copyright © 2015 Korean Neuropsychiatric Association
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.