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. 2015 Aug 20;3(3):e83. doi: 10.2196/mhealth.4222

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©Bumjo Oh, Belong Cho, Min Kyu Han, Hochun Choi, Mi Na Lee, Hee-Cheol Kang, Chang Hee Lee, Heeseong Yun, Youngho Kim. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 20.08.2015.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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