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. 2021 Oct 18;12:746568. doi: 10.3389/fmicb.2021.746568

Figure 1.

Figure 1

Principal component analysis (PCoA) plots based on the Bray-Curtis distances showed distinct clusters in (A) HCs&HGG, (B) HCs&LGG, and (C) HGG&LGG. The individual samples are color-coded to indicate HCs (red), LGG (blue), and HGG (green). HCs, healthy controls; HGG, high-grade glioma; LGG, low-grade glioma.