. 2014 Feb 17;16(2):e50. doi: 10.2196/jmir.2819
©Shu-Ching Ma, Tsair-Wei Chien, Hsiu-Hung Wang, Yu-Chi Li, Mei-Shu Yui. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 17.02.2014.
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