The keywords are clustered into 19 groups including “inhibition,” “arsenic trioxide,” “pathway,” “DNA damage,” “Nutlin-3a,” “autophagic degradation,” “pyropheophorbide-alpha methyl ester,” “efficacy,” “immunotherapy,” “PLK1,” and “breast cancer,” among others, as depicted in Figure 10c. This evidence concerns the gene PLK1 and breast cancer.