1Graduate School, College of Nursing, Seoul National University · Institute, Korean Academy of Medical Sciences, Seoul, Korea.
2College of Nursing, Seoul National University, Seoul, Korea.
© 2014 Korean Academy of Community Health Nursing
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.
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No.2010-0028631).