Figure 2. Cluster analysis based on m6A-related genes. (A, B) Cluster analysis indicated that 317 OSCC samples in TCGA can divided into 2 groups. (C) Survival analysis between cluster1 and 2. (D) Principal component analysis was performed on basis of cluster analysis. PCA1 represents principal component analysis 1, while PCA2 stands for principal component analysis 2. (E) The correlation of cluster analysis and clinical characteristics (grade, p=0.0352). N stands for N classification in TNM system, and T stands for T classification in TNM system.