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. 2016 Nov 3;17:453. doi: 10.1186/s12891-016-1307-1

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© The Author(s). 2016

Open AccessThis 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. 2 — Visual Pain Mapping presenting the distribution of workers in the 4 pain categories in Dphacto. The Visual Pain Mapping is divided in following 4 categories: (1) ‘Low Pain Level and low Pain Variation’, (2) ‘Low Pain Level and high Pain Variation’, (3) ‘High Pain Level and high Pain Variation’ and (4) ‘High Pain Level and low Pain Variation’. N reports the number of workers in each category