The median H-scores of KLK2, KLK4, KLK6, and KLK14 protein expression in the nuclei of normal cells were 9, 24, 12.5, and 14.5, respectively, as compared with the tumor cells (42, 73.5, 43.5, and 62, respectively); therefore, the p values were 0.0027, 0.0009, 0.0062, and 0.0009, respectively. Here, KLK2 is linked to neoplasm.