ghk-cu lc ms ms ion pair Development of an ion-pairing reagent-assisted LC–MS/MS method employing fragmentation with stepped collision energy for monophosphoryl lipid A containing 3-deoxy-D-manno-octulosonic acid and its derivatives HPLC Method for Analysis of

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Keller, K., Friedrich, O., Treiber, J., Quermann, A., & Friedmann-Bette, B

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Statistical analyses As Pearson correlation coefficients between the nine metabolite concentration values (three metabolites in three voxels) were substantial even after adjustment for potential confounders, we used principal component analysis (PCA) to identify latent metabolite variables, and extracted scores for each component (see Results and SA7 for details)