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. 2016 Mar 17;4(1):e23. doi: 10.2196/mhealth.5219

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©Ekaterina Volkova, Nicole Li, Elizabeth Dunford, Helen Eyles, Michelle Crino, Jo Michie, Cliona Ni Mhurchu. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 17.03.2016.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), 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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Nutrition-labeling formats allocated to intervention and control groups in the trials. (a) Daily Intake Guide*. (b) Traffic Lights. (c) Health Star Rating. (d) Nutrition Information Panel (control arm). (e) Warning Label*. *Australian trial only.