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. 2020 Aug 11;11:792. doi: 10.3389/fneur.2020.00792

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Copyright © 2020 Edwards, Ioannou, Carin-Levy, Cowey, Brady, Morton, Sande, Mead and Quinn.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Harvest plot of psychometric evaluation of pain scale according to the 12 included studies. Each unit represents a differing study. Color coding is used to represent differing pain types. Position around horizontal line describes paper conclusions regarding the property of interest, where above the line indicates “good,” below the line indicates “poor” and on the line indicates “uncertain.” Full description given in main manuscript. VAS, Visual Analog Scale; NRS, Numerical Rating Scale; FPS, Faces Pain Scale; VRS, Visual Rating Scale; ShoulderQ, Shoulder pain questionnaire; PACSLAC-II, Pain Assessment Scale for Seniors with Severe Dementia-II; DN4, neuropathic pain diagnostic questionnaire.