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. 2020 Aug 4;31(5):609–617. doi: 10.1177/1120700020946716

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© The Author(s) 2020

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

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Figure 2. — Bar chart representing the comparison of methods [freehand (blue/crosshatch), MAG (green/dot fill), inclinometer (red/parallel hatch)] with regard to the number of outliers (outliers as specified by referenced studies.