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. 2022 Jun 15;13:897439. doi: 10.3389/fendo.2022.897439

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Copyright © 2022 Wen, Li, Cai, Fan, Wang, Ding, Huang and Xiao

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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Co-citation analysis of global publications in ONFH in the last 30 years. (A) Network visualization of the 841 identified journals in ONFH. (B) Network visualization of the 1,184 identified publications in ONFH. In the visualized network, each item is represented by a circle. The size of the circle is determined by the number of publications of the item. The distance between two circles approximately indicates the relatedness of the items. Item color is determined by the cluster to which the item belongs.