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. 2021 Feb 1;22:6. doi: 10.1186/s12868-021-00608-5

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 3 — Score plot of OPLS regression model of pain intensity (VASPI). VASPI ranged from 40–94 and patients were dichotomized into moderate and high pain intensity (VASPI 40–76 respective 77–94). The model was significant according to CV-ANOVA (p = 0.041). Each dot represents a patient and the size of the dot indicates the importance for the model