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. 2022 May 11;13:874021. doi: 10.3389/fimmu.2022.874021

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Copyright © 2022 Yang, Xiang, Zou, Zhang, Ni and Yang

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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Heat map of the differential metabolites in pSS patients and HCs. (A) ESI-, (B) ESI+. The colors from blue to red indicate the relative contents of the metabolites in the two groups.