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. 2022 Aug 10;9:915558. doi: 10.3389/fnut.2022.915558

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Copyright © 2022 Zhang, Han, Hou, Raza, Gui, Sun, Wang, Yang, Yuan, Simal-Gandara, El-Shehawi, Alswat, Alenezi, Shukry, Sayed and Aloufi.

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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3D PCA score of the overall samples in the positive (A) and negative (B) ion detection mode. The HS group is marked as red, the MS group is marked as green, the LS group is marked as blue, and the QC samples are indicated with purple. PC1 represents principal component 1, PC2 represents principal component 2, and PC3 represents principal component 3.