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. 2022 Nov 30;13:1066747. doi: 10.3389/fmicb.2022.1066747

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Copyright © 2022 Shao, Xie, Liang, Luo, Li, Zheng, Xu and Xu.

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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Mass spectrogram of component 4. Primary mass spectrometry (A), secondary mass spectrometry (B) of the [M + Na]⁺ ion peak at m/z = 1058.67 and secondary mass spectrometry fragmentation rule (C) of component 4.