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. 2022 Mar 31;13:816031. doi: 10.3389/fneur.2022.816031

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Copyright © 2022 Wang, Chen, Zhai, Chu, Liu and Ma.

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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The dual-map overlay of journals related to PE research. [The Dual-map Overlay of Journals Related to the treatment of Insomnia by TCM Nursing Techniques research. There were three citation paths. The top green path, articles published in medicine/medical/clinical journals mostly cited journals in health/nursing/medicine area; the bottom green path, articles published in medicine/medical/clinical journals partially cited journals in psychology/education/social area. The blue path, articles published in psychology/education/health journals partially cited journals in health/nursing/medicine area. (Color figure online)].