. 2016 Jun 21;18(6):e151. doi: 10.2196/jmir.4954
©Yue Liao, Kara Skelton, Genevieve Dunton, Meg Bruening. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 21.06.2016.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.
Figure 1.
PRISMA Flow Diagram for paper selection process.