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. 2020 Feb 21;14(3):161–170. doi: 10.1177/2049463720908798

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© The British Pain Society 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 1. — (a) Virtual reality headset, (b) smartphone showing frequency options for binaural beats (auditory) stimulation and (c) smartphone showing frequency options for visual stimulation.