Received August 13, 2015, Revised November 11, 2015, Accepted November 13, 2015 Correspondence to: Kyoung Eun Lee Kosin University Research Institute of Holistic Nursing Science, 262 Gamcheon-ro, Seo-gu, Busan 49267, Korea Tel: +82-51-990-6453, Fax: +82-51-990-3951, E-mail: todylkeun@hanmail.net Office of Faculty Support Team of Kosin University. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.