. 2017 Jul 11;19(7):e246. doi: 10.2196/jmir.7833
©Juan Frias, Naunihal Virdi, Praveen Raja, Yoona Kim, George Savage, Lars Osterberg. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 11.07.2017.
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Figure 2.
CONSORT flow diagram of participants.