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. 2016 Sep 1;5(3):e179. doi: 10.2196/resprot.4542

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©Sharief Hendricks, Peter Düking, Stephen D Mellalieu. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 01.09.2016.

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 Research Protocols, is properly cited. The complete bibliographic information, a link to the original publication on http://www.researchprotocols.org, as well as this copyright and license information must be included.

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