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. 2020 Oct 9;22(10):e17757. doi: 10.2196/17757

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©Saskia Marion Kelders, Hanneke Kip, Japie Greeff. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 26.09.2020.

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.

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Engagement scores of adherers and nonadherers at the different time points. DBCI-ES-Ex: the experiential subscale of the Digital Behavior Change Intervention Engagement Scale; T: time point; TWEETS: TWente Engagement with Ehealth Technologies Scale.