Data Analysis
Considering the respective properties and advantages, we simultaneously used VOSviewer, the Bibliometrix R package, and CiteSpace.
VosViewer (version 1.6.18) is a bibliometric analysis software that can be used for network construction and visualization based on publications, countries and institutions, journals and co-cited journals, authors and co-cited authors or keywords[12-13]. In the visual network diagram built by this software, a circle represents an analytical item, such as a country, institution, journal, or author. The size of the circle depicts the number of this item. Circles’ colors represent different clusters. The thickness of the lines between the circles reflects the degree of cooperation or co-citation between the analyzed items. Bibliometrix R package (version 4.2.1) (https://www.bibliometrix.org) was used to conduct the bibliometric and visualized analysis. Besides, we used Bibliometrix to build the Bradford’s Law diagram, publications geographic distribution maps, trend topic analysis, and the Sankey diagram[14–15].
Bibliometric software CiteSpace (version 6.1.R3) was used to draw the dual map of the journal[16-17]. In addition, Microsoft Office Excel 2019 was used to graph the quantitative analysis of the publication.