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. 2019 Jun 3;18:21. doi: 10.1186/s12912-019-0343-1

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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.

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Fig. 5 — Study two keyword co-occurrences for ICU nurse wellbeing. Note: Visualisation from VOSviewer™ (n = 200). The size of the label and the circle of an item indicates the frequency of the keyword. The higher the frequency the larger the size. The colour of an item indicates the cluster the keywords belong to. Distances between keywords indicates relatedness of keywords in terms of co-occurrence links. Closer terms indicate closer relatedness. The strongest co-occurrences are represented by lines