In addition, we found that the expression level of DOK7 was correlated with the histological grade and clinical stage of the tumor in the BLCA patients (P < 0.001), but there was no significant association with the patient’s age and gender, lymph node metastasis, distant metastasis, and tumor depth (Table 1). The gene discussed is DOK7; the disease is metastatic malignant neoplasm in the lymph nodes.