. 2017 Aug 2;5(8):e113. doi: 10.2196/mhealth.7177
©Peter Tinschert, Robert Jakob, Filipe Barata, Jan-Niklas Kramer, Tobias Kowatsch. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 02.08.2017.
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Figure 1.
Systematic search and exclusion criteria.