. 2014 Dec 16;16(12):e289. doi: 10.2196/jmir.3680
©Dong-Woo Seo, Min-Woo Jo, Chang Hwan Sohn, Soo-Yong Shin, JaeHo Lee, Maengsoo Yu, Won Young Kim, Kyoung Soo Lim, Sang-Il Lee. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 16.12.2014.
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