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. 2023 May 5;14:1182006. doi: 10.3389/fmicb.2023.1182006

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Copyright © 2023 Chang, Ou, Zhou, Liu and Zhang.

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) CiteSpace visualization of the top 10 most frequently occurred keywords, (B) CiteSpace visualization of keyword timeline maps, and (C) Top 25 keywords with the strongest citation bursts in this field over the past 20 years. Year indicates the year in which the keyword first appeared, strength indicates the citation burst strength of the keyword, and the end indicates the beginning and ending times of the citation burst of the keyword. Red indicates the period of occurrence of the citation burst.