Likewise, POLD1 expression was significantly positively correlated with MSI in ACC, BLCA, BRCA, CESC, head and neck squamous cell carcinoma (HNSC), KICH, KIRC, HCC, LUAD, LUSC, PRAD, SARC, STAD, THCA, and UCEC (Supplementary Figure S3D). This evidence concerns the gene POLD1 and cervical squamous cell carcinoma.