[Retracted] Identification of Potential Key Biomarkers of Atrial Fibrillation and Their Correlation with Immune Infiltration in Atrial Tissue

Figure 2

Two-dimensional PCA cluster diagram and heatmap and volcano plot of all DEGs. (a, b) Two-dimensional PCA cluster diagram before and after sample correction. (c) Heatmap of all DEGs. Red indicates relatively high expression, and green indicates relatively low expression. (d) The volcano plot of all DEGs; red represents upregulated DEGs, and green represents downregulated DEGs.

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