. 2020 May 22;22(5):e17101. doi: 10.2196/17101
©Mario Lozano-Lozano, Carolina Fernández-Lao, Irene Cantarero-Villanueva, Ignacio Noguerol, Francisco Álvarez-Salvago, Mayra Cruz-Fernández, Manuel Arroyo-Morales, Noelia Galiano-Castillo. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 22.05.2020.
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.
Flow diagram of the recruitment and randomization process. OS: operation system.