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. 2019 Nov 7;10:1322. doi: 10.3389/fphar.2019.01322

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Copyright © 2019 Wang, Zhai, Sun, Wu, Wang, Fang and Kong

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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Principal component analysis. Principal component analysis scatter plots showing the first two (A) and three (B) principal components with control and PSS patients. PSS, Posner–Schlossman syndrome.