Fig. 3

NQO1 IHC staining. a Moderately differentiated pancreatic adenocarcinoma, 3+ NQO1 staining, H-score 300. b Moderately differentiated colonic adenocarcinoma, 3+ NQO1 staining, H-score 250. c Lung adenocarcinoma, 3+ NQO1 staining, H-score 290. d High-grade invasive ductal breast carcinoma, 3+ NQO1 staining, H-score 300. e Prostate adenocarcinoma, 0+ NQO1 staining, H-score 0