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. 2020 Mar 20;8(3):e17208. doi: 10.2196/17208

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©Marcus Bendtsen, Ulrika Müssener, Catharina Linderoth, Kristin Thomas. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 20.03.2020.

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 JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Locally weighted scatterplot smoothing: age against proportion of participants responding to follow-up for all participants.