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. 2022 Dec 29;20(1):585. doi: 10.3390/ijerph20010585

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(A) The dual-map overlay of citing and cited article. Labels indicate corresponding disciplines of citing or cited articles. (B) The dual-map overlay using z-score function. (C) The co-citation links of the cited journals. (D) The citing and cited trajectory from 2012 to 2021. (E,F) The partial enlargement of the trajectory. Note: Different colors represent different discipline categories. The thicker the connection between disciplines, the stronger the citation relationship, and vice versa.