To further investigate correlations of ALDH7A1 rs13182402 polymorphisms with ALDH7A1 expression levels in oral cancer, we examined rs13182402 genotypes of five oral cancer cell lines (SCC-14, SAS, CA9-22, HSC-3, and OECM-1) and found that SAS cells carried the GG genotype of rs13182402 compared to SCC-14, CA9-22, HSC-3 and OECM-1 cells which carried the AA genotype (Figure 3A, upper panel). The gene discussed is ALDH7A1; the disease is lip and oral cavity carcinoma.