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. 2019 Oct 23;7(10):e13935. doi: 10.2196/13935

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©Elsje C Oostingh, Robbin H Ophuis, Maria PH Koster, Suzanne Polinder, Hester F Lingsma, Joop SE Laven, Régine PM Steegers-Theunissen. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 23.10.2019.

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 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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Overview of both the intervention and control groups during their enrollment in the Smarter Pregnancy randomized controlled trial. Adapted from van Dijk et al [<xref ref-type="bibr" rid="ref10">10</xref>]. SMS: short message service.