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. 2021 May 6;14:1807–1825. doi: 10.2147/JIR.S306789

Figure 4.

Figure 4

Representative total ion chromatograms (TICs) of serum samples subjected to (UPLC/QTOF-MS) in positive and negative ion modes. (A and B) TICs of CTRL group and LPS group in the positive ion modes; (C and D) TICs of CTRL group and LPS group in the negative ion modes.