Haas et al. introduced a phenomenon in their experiment that an increasing stromal FoxP3+ TIL infiltration in tumor issues had a negative correlation with UICC- stage (Pearson's correlation coefficient, r = −0.40; p = 0.001), number of lymph node metastases (r = −0.36; p = 0.009), and N category in general (r = −0.36; p = 0.023). The gene discussed is FOXP3; the disease is neoplasm.