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. 2022 Jun 3;10:918483. doi: 10.3389/fpubh.2022.918483

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Copyright © 2022 Cheng, Guo, Yang, Wang, Sun and Wu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Total number of publications, average citations per document, and H-index of top 5 authors in this area. (B) Top 5 authors' production over time. The circle size represents the number of documents (N. Documents), and the shade of the color signifies the total number of citations (TC). (C) The cluster density map of author co-authorship analysis generated by VOSviewer. Authors with close cooperation relationship are assigned to one cluster with the same color. (D) The network visualization map of author co-citation analysis generated by VOSviewer. Each author is represented as a node, and the node size is proportional to the sum of citations. A link between two nodes indicates a co-citation relationship. The distance between nodes indicates the relatedness, and a smaller distance implies a higher relatedness and will be assigned to one cluster with the same colors.