The results showed that the expression of NALCN was significantly associated with tumor stage in BLCA, COAD, esophageal carcinoma (ESCA), HNSC, KIRC, LUAD, READ, STAD, testicular germ cell tumors (TGCT), THCA, and UCEC (Figure 4A). The gene discussed is NALCN; the disease is testicular germ cell tumor.