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. 2021 Mar 4;22:183. doi: 10.1186/s13063-021-05130-x

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 3 — a Year of publication of identified articles. Please note that for 2020, only papers up to 29.05.2020 which were found on Scopus and Web of Science Core Collection with the search terms described in the “Methods” section were included. b Journal of publication of identified articles. Journals having published only one article were summarized as “Other”. Journals are sorted firstly from highest to lowest number of publications and later alphabetically. c Year of publication of identified articles which mentioned any software. Please note that for2020 only papers up to 29.05.2020 which were found on Scopus and Web of Science Core Collection with the search terms described in the “Methods” section were included. Colors represent whether or not any software was provided in the paper either as a supplement or direct link to some code repository. d: Journal of publication of identified articles which mentioned any software. Journals having published only one article were summarized as “Other”. Journals are sorted firstly from highest to lowest number of publications and later alphabetically