Univariate analysis revealed that KLF5 protein levels were related to the tumor residual margin (p = 0.031) and diaphragm metastasis (Figure S3A, Supporting Information; p = 0.038), and multivariate analysis confirmed a correlation between KLF5 expression and tumor residual margins (Figure S3B, Supporting Information; p = 0.014). The gene discussed is KLF5; the disease is neoplasm.