. 2019 Apr 30;21(4):e12463. doi: 10.2196/12463
©Rixt Zuidema, Sandra van Dulmen, Maria Nijhuis-van der Sanden, Inger Meek, Cornelia van den Ende, Jaap Fransen, Betsie van Gaal. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 30.04.2019.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), 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.
CONSORT flow diagram.