Lack of cytoplasmic expression of a new marker programmed cell death ligand-1 in tumor cells is significant

Figure 7 Receiver operating characteristic curve. A: Receiver operating characteristic (ROC) curve for estrogen receptor status; B: ROC curve for progesterone receptor status; C: ROC curve for human epidermal growth factor receptor-2 status; D: ROC curve for the lack of cytoplasmic programmed cell death protein 1 ligand 1 expression in tumor cells; E: ROC curve for tumor-infiltrating programmed cell death protein 1 ligand 1-positive immune cell scores.