www.e-acfs.org pISSN 2287-1152 eISSN 2287-5603 142 Copyright © 2014 The Korean Cleft Palate-Craniofacial 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 origi...