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. 2018 Jun 25;9:2041731418781696. doi: 10.1177/2041731418781696

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© The Author(s) 2018

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Matrix of variables investigated in this study along with levels for each variable. For each individual set of experimental conditions n = 3.