. 2018 Feb 15;6(2):e42. doi: 10.2196/mhealth.8074
©Cristina Colón-Semenza, Nancy K Latham, Lisa M Quintiliani, Terry D Ellis. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 15.02.2018.
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Figure 1.
Participant flowchart.