. 2018 Nov 28;6(11):e199. doi: 10.2196/mhealth.9854
©Elke Hacker, Caitlin Horsham, Dimitrios Vagenas, Lee Jones, John Lowe, Monika Janda. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 28.11.2018.
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Figure 1.
Flowchart of study recruitment. UV: ultraviolet.