Abstract
Received March 15, 2013. Accepted March 20, 2013. Correspondence to: Jae Hun Kim, MD Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, 4-12 Hwayang-dong, Gwangjin-gu, Seoul 143-729, Korea Tel: +82-2-2030-5470, Fax: +82-2-2030-5449, E-mail: painfree@kuh.ac.kr 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. Copyright c The Korean Pain Society, 2013 REPLY TO THE LETTER
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