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. 2022 Nov;12(11):5080–5100. doi: 10.21037/qims-22-207

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2022 Quantitative Imaging in Medicine and Surgery. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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Cluster visualization of the reference co-citation network, with modularity Q=0.84 and mean silhouette S=0.91 (indicating that the classification was reasonable and the interior of the cluster was uniform), in MRE from 1995 to 2021. The different-colored shapes represent different clusters, with the colors indicating the years they appeared. The clusters represent the frequency of the keywords in the publications. The smaller the sequence number of the cluster, the higher the frequency. The papers [name (year)] appeared in each cluster were the result of the parameter related to co-citation frequency set by an operator. MRE, magnetic resonance elastography.