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. 2022 Dec 14;2(3):e96. doi: 10.52225/narra.v2i3.96

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© 2022 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY NC 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (https://creativecommons.org/licenses/by-nc/4.0/).

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Figure 2. — Overlay of VOSviewer keywords co-occurrences mapping. The minimum limit was established at 20 occurrences, resulting in 201 keywords. The year of appearance was indicated by color gradation from purple to yellow.