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. 2018 Jul 23;18(Suppl 2):64. doi: 10.1186/s12911-018-0634-6

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© The Author(s) 2018

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — The VEO model of emotions framed from [15, 18]. The boxes with solid lines are of positive valence and the boxes with dotted lines are of negative valence