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. 2021 Sep 9;12:732173. doi: 10.3389/fpsyg.2021.732173

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Copyright © 2021 Li and Wang.

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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Mediation model showing the relationship between structural social support and loneliness as mediated by functional social support. SSS, structural social support; FSS, functional social support; and ^*** p<0.001.