. 2014 Sep 17;16(9):e214. doi: 10.2196/jmir.3322
©Sok Ying Liaw, Sally Wai-Chi Chan, Fun-Gee Chen, Shing Chuan Hooi, Chiang Siau. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 17.09.2014.
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Figure 3.
Flow of data collection.