LMO2 and metastatic malignant neoplasm in the lymph nodes: Based on anti-LMO2 immunohistochemistry (IHC) intensity (Supplementary Figure 1A), the statistical analysis showed that there was no significant difference of LMO2 expression between basal and non-basal groups, or between lymph node metastasis negative and positive groups in the overall sample set (Pearson χ2 test, Figure 1C, Supplementary Table 1).