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. 2012 Jan 30;53(2):304–309. doi: 10.3349/ymj.2012.53.2.304

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© Copyright: Yonsei University College of Medicine 2012

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.

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Table 2.

Demographic Data and Characteristics of the Participants