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. 2020 Aug 21;10:1628. doi: 10.3389/fonc.2020.01628

FIGURE 4.

FIGURE 4

Immune cells infiltration analysis. (A) The distribution of 22 types of immune cells between primary and metastatic osteosarcoma tissues. (B) The difference of immune cells infiltration between primary and metastatic osteosarcoma tissues visualized by heatmap. (C) Violin plot visualizing the differentially infiltrated immune cells (P < 0.05). (D) PCA performed on all osteosarcoma tissues. The two principal components showed nothing significant variation. PCA, principal component analysis.