. 2016 Jul 19;18(7):e191. doi: 10.2196/jmir.4480
©Marcel Winandy, Patty Kostkova, Ed de Quincey, Connie St Louis, Martin Szomszor. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 19.07.2016.
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Figure 1.
Comparison of maximum outreach of all channels.