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. 2019 Jul 10;8(7):213. doi: 10.3390/antiox8070213

Figure 4.

Figure 4

Principal component analysis (PCA) scores, heatmaps, and variable importance in projection (VIP) scores of the partial least squares discriminant analysis (PLSDA) in head and neck cancer (HNC) patients vs. the control group (A) and in HNC patients before and after radiotherapy (B). HDL: high-density lipoproteins; IDL: intermediate-density lipoproteins; LDL: low-density lipoproteins; VLDL: very-low-density lipoproteins. The suffix −P indicates number of particles, and the suffix −Z indicates the particle diameter.