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. 2021 Jan 7;23(1):e21690. doi: 10.2196/21690

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©Salim Salmi, Saskia Mérelle, Renske Gilissen, Willem-Paul Brinkman. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 07.01.2021.

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.

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Conditions of the experiment: senior counselor written advice (left); support system (center); no additional help (right). Content translated from Dutch.