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. 2021 Feb 10;23(2):e25499. doi: 10.2196/25499

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©Andy Wai Kan Yeung, Anela Tosevska, Elisabeth Klager, Fabian Eibensteiner, Daniel Laxar, Jivko Stoyanov, Marija Glisic, Sebastian Zeiner, Stefan Tino Kulnik, Rik Crutzen, Oliver Kimberger, Maria Kletecka-Pulker, Atanas G Atanasov, Harald Willschke. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 10.02.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Density map showing author keywords of the publications in virtual reality research in medicine. Keywords occurring in at least 0.1% (9/8399) of the publications were included. The keywords “virtual reality,” “augmented reality,” and “mixed reality” are not shown as they were the major search terms. A keyword or cluster of keywords with higher frequency counts forms a red region, and those with lower frequency counts form a yellow region.