VDR and cervical squamous cell carcinoma: We employed the GEO2R tool to indicate the differential expression of VDR (|Log2FC| > 1, adjusted p-value < 0.05) and used www.bioinformatic.com.cn to visualize volcano plot differences in gene expression. The database was GSE122697, including five patient samples of normal cervical epithelium and 11 cervical squamous cell carcinomas.