. 2017 Mar 6;19(3):e63. doi: 10.2196/jmir.6537
©Jingbo Meng, Wei Peng, Soo Yun Shin, Minwoong Chung. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 06.03.2017.
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Figure 1.
Flow diagram of the participants.