. 2003 Jun 30;4(2):85–90. doi: 10.3348/kjr.2003.4.2.85
Copyright © 2003 The Korean Radiological Society
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.